The owners of Latin House in Miami suspect that someone at their offsite warehouse is giving away the recipes to their award-winning burgers.
The owners of The Real Food Academy in Miami Shores, Fla., are concerned that their cooking instructors are going off curriculum.
The owner of Weiland Brewery in Los Angeles, contacts Mystery Diners after noticing discrepancies with his beer supply.
The owner of Harvey's Steakhouse in Huntington Beach, Calif., notices a decline in his restaurant's older customers.
A woman notices numerous discrepancies with the catering company she uses to cater her art shows.
A former client contacts Charles to help determine if he should invest in a failing California restaurant.
After noticing over $4,000 missing from her office safe, Keeli, owner of Fuzion in Huntington Beach, Calif., suspects that one of her managers is responsible.
The owner of Fillmore and Western Railway, in Fillmore, Calif., is concerned about missing supplies and rumors of unauthorized passengers during his train's dinner theater service.
The owners of the Gateway Restaurant and Lodge, located near Sequoia National Park in California, hear complaints of unauthorized parties taking place inside their vacant cabins.
The owner of Victory in New Orleans begins hearing rumors that his restaurant's signature cocktail is being served at other bars.
The owner of Marigny Brasserie in New Orleans notices an influx of rowdy tourists at his bar for locals.
Owner is concerned about an unhealthy competition between her two New Orleans restaurants, Toast and Tartine.
The owners of Moviesets, in New Orleans, are concerned about theft at their prop house-turned-event center.
Having already been helped by Mystery Diners in the past, Nico, owner of Capo's Speakeasy in Las Vegas, contacts Charles to help with a personal problem at his new home.
The owners of Hot Red Bus, near Los Angeles, contact Charles after hearing rumors that their restaurant is open on the one day it's supposed to be closed.
The owner of Doffo Winery in Temecula, Calif., contacts Charles after noticing missing wine barrels.
Tired of being mistreated, the wait staff of a California restaurant contacts Charles to do a reverse sting on their employer.
The owner of Corbin Bowling Center in Tarzana, Calif., contacts Charles for help after hearing complaints about rowdy customers.
The owner of Lenny's Deli in Los Angeles, fears that his new baker is taking artistic license with customer cake orders.
Chef Chai, the owner of a restaurant in Honolulu, notices multiple ticket voids and calls in Charles for help.
The owner of ShoreFyre in Honolulu notices discrepancies in sales and contacts Charles to investigate.
The manager of the Hawaii Yacht Club in Honolulu, responds to complaints about nonmembers at members-only dinner events.
The owner of Cha Cha Cha Salsaria in Honolulu, hears rumors of an unauthorized boat delivery service.
The owner of Rock Island Cafe in Honolulu, asks for help when he notices a drop in his restaurant's memorabilia sales.
A staff may be getting carried away with the digital shorts they produce to promote a restaurant and help is sent in.
Rod and Linda, owners of a la carts Food Pavilion in Portland, Ore., hear complaints from their tenants about the new onsite manager so mystery diners are sent in to investigate.
The owner of Uptown Billiards believes the social media expert he hired to promote his restaurant isn't doing his job and mystery diner Amber steps in with an interesting discovery.
Ghaith and Tiffany, the owners of Dar Salam in Portland, Ore. notice a discrepancy in supplies and fear their competition may be the culprit.
The owners of Fenders Moto Cafe and Brew Pub in Portland, Ore., notice some of their valuable motorcycle memorabilia has gone missing.
The owner of Cookin' With Lenny Smokehouse in Los Angeles, fears that someone on his staff is using restaurant supplies to operate a competing catering company.
The owner of 55 Degree Wine and Link-n-Hops in Los Angeles, believes discrepancies at both his wine shop and restaurant are somehow related.
The owner of Tavern on Main outside of Los Angeles, fears someone on his staff is stealing donations from his restaurant's annual Thanksgiving Food Drive.
The owners of Geppino's Sicilian Kitchen in Moorpark, Calif., hear customer complaints about stolen items.
After purchasing Cafe Aldente in Studio City, Calif., the new owners believe the previous employees are still practicing old policies.
The owner of Black Rose Tavern in Los Angeles, fears that someone is taking advantage of her after noticing multiple register mistakes.
The owner of Rockabillies in Arvada, Colo., becomes concerned about a dip in sales, especially during his restaurant's summer vintage car show.
The owners of Indulge Bistro and Wine Bar in Colorado, notice discrepancies in their wine and cheese costs.
The owner of Slice Works in Denver, notices a decrease in delivery sales, and an increase in delivery complaints.
The owners of the Toad Tavern in Littleton, Colo., worry that their son and his band mates are more focused on their musical aspirations than their jobs in the restaurant.
The owner of 730 South in Denver, suspects that his regular customers have become too entitled.
The owner of Devine Pastabilities in San Diego, Calif., fears that someone is stealing from his restaurant.
Marko and Brett own competing food trucks in San Diego, but decide to work together to investigate revenue loss in both of their vehicles.
The co-owners of Barrio Star in San Diego, have a dispute over which waiter they should promote to manager.
The owner of The Compass in Carlsbad, Calif., fears that a rivalry between her two flair bartenders is the cause of tension and missing alcohol.
The owners of Shades Oceanfront Bistro in San Diego, Calif., discover discrepancies in their chicken and beef supply.
After a feud between his pizzeria and bakery threatens his business, John, the owner of Metro Pizza in Las Vegas, needs help dealing with the backlash.
After experiencing discrepancies with their supply of expensive protein supplements, Larissa and Andrew, owners of Protein House in Las Vegas, contact Charles to help investigate
The team helps restaurant owners who suspect their employees are not doing their jobs correctly. Rosele, boss of Sergio's Italian Gardens in Las Vegas, is concerned about a conflict between her long-time pianist and recently hired magician
When Marty, owner of Barefoot Bob's Beach Bar and Gaming in Las Vegas, hears employee complaints about his new manager, he asks Charles to investigate
After Paul, owner of Nacho Daddy in Las Vegas, notices a problem with the expensive scorpions used in his restaurant's 'scorpion shot', he contacts Charles to investigate
The owner of Beets Cafe, Austin, Texas, asks the team for help when she fears that her employees are selling the secret recipes to her raw food menu
After hearing rumours that kegs of his privately brewed beer are showing up at local parties, Rick, owner of Uncle Billy's Brew and Que in Austin, Texas, contacts Charles for help
Carl, owner of the Bakehouse Restaurant and Bar in Austin, Texas, fears a dispute between his son and his favourite waitress is threatening the harmony of his establishment, so seeks the team's advice on the best way to proceed
Danny and Jonathan, owners of the Old School Bar and Grill in Texas, are concerned about a loss of revenue on their poetry nights, so Charles sends in Justin and Samantha to investigate the causes of the reduction
The owner of Pelons Tex-Mex Restaurant in Austin, Texas, contacts Charles for advice after hearing rumours that his staff are collecting money for an unauthorised charity
After noticing an excess of lobster meat, Peter, owner of the Roll 'n' Lobster Food Truck in Los Angeles believes his new drivers are using his vehicle for personal errands, so seeks the team's advice
The team helps the owner of Spring Street Smoke House in Los Angeles, after he notices a decrease in his valuable fat trimmings
After hearing rumours that customers are being served off-menu food, Esdras and Javi, owners of Mexicali Tacos in Los Angeles, call Charles to investigate
The owner of Encore Dinner Theatre, suspects a relationship between one of his waiters and one of his actresses is affecting customer service.
The team helps the owner of Red Balls Rock-and Roll Pizza, Moorpark, California when his restaurant has a set of inventory discrepancies
A Californian restaurant owner becomes suspicious when there is a spike in coupon use, and asks the team to investigate
The owners of a Seattle restaurant ask the team to investigate rumours that members of his staff are offering haunted tours of the restaurant
The owner of Zippy's Giant Burgers in Seattle, hears rumors that his costumed mascot is misbehaving.
After inheriting some of their staff from the previous owner, the new owners of Sam's Tavern in Seattle, believe there is a divide between the old guard and their new employees.
The owner of a Greek restaurant asks Charles Stiles to investigate when he finds broken dishes, and the Mystery Diners discover a staff member has been getting carried away
The owner of Bistro Baffi asks Charles Stiles and the team to help when several expensive bottles of wine go missing from his restaurant
The co-owner of German restaurant Speiskammer, Alameda, worries that his staff hired by her ex-husband could be more trouble than they are worth
At a French bistro in San Francisco, the staff are investigated after their boss receives complaints of rude behaviour
The owner of a cafe in San Francisco asks the team to discover the truth behind rumour of unauthorised promotions being given by his new manager
After hearing complaints from his cross-dressing customers that the weekly quiz night is rigged, Bob, the owner of Venture Inn in Philadelphia, suspects his manager is responsible
The owner of Looney's BBQ calls the Mystery Diners crew to investigate whether his staff are pranking their customers with extremely hot sauce
The owner of Falls Taproom in Philadelphia contacts Charles to help investigate a feud between his girlfriend and his best friend, who are manager and customer respectively
The owner of Venture Inn in Philadelphia calls in the team after hearing complaints from customers that the weekly quiz night is rigged
Del Rossi's Cheesesteak Co owners Dave and Mike Frank contact the team for help after hearing complaints that their late-night security guard is being rough with customers
Tommy, owner of Gigi Restaurant in Philadelphia, suspects that his manager - also his mother - is discriminating against younger customers, so contacts Charles to investigate
After receiving numerous complaints about his delivery service, Danny, the owner of Bella Luna Cafe in Chicago, contacts Charles for help as mystery diner Mark goes undercover
After learning that several petite women have easily completed their grilled cheese-eating challenge, the owner of Cheesie's Pub & Grub in Chicago, seeks help to investigate
Gary and Tony, co-owners of Big & Little's Restaurant in Chicago, seek help after hearing rumours that employees are illegally selling alcohol to customers at their BYOB restaurant
After receiving numerous complaints about his new executive chef, Pascal, the owner of Bistro Bordeaux in Evanston contacts Charles to investigate
While recovering in Brazil from a paragliding accident that almost killed him, Kevin, owner of Gauchos Village in Glendale notices a discrepancy in revenue and inventory at his restaurant
The owner of Colombo's Italian Steakhouse in Eagle Rock contacts Charles for help when a lack of harmony among his employees threatens his restaurant
Michael, the owner of Newport Beach Brewing Company in Newport Beach, Calif., believes his onsite Brewmaster may be running a side business.
After losing several sushi models, Bruce, owner of Lotus on Flower, fears that one of his best customers is behaving inappropriately during the restaurant's 'naked sushi' dining experience
Patrick, owner of Buster's Beach House in Long Beach calls Charles to investigate rumours that his executive chef is showing preferential treatment amongst the waiting staff
The owners of Sisley Italian Kitchen, believe their bookkeeper may be responsible for a revenue discrepancy.
The owner of Buttons Restaurant in Texas, asks Charles to investigate after fielding complaints that his ex-military manager is being too strict.
After noticing a drop in revenue at his Dallas restaurant, Stroker's Ice House, a man tries to convince his retired mother to return as the manager.
Francesco, the owner of Zio Cecio in Dallas, begins hearing rave reviews about the Tex-Mex food being served in his Italian restaurant.
Terry, the owner of Cooper's Old Time Pit Bar-B-Que in Texas is concerned that one of the employees is selling his secret family recipe.
The owner of a Las Vegas bistro fears his restaurant manager, who happens to be his brother, is not doing a good job, so the Mystery Diners check up on him
The owner of Deanie's Seafood in New Orleans, is worried that his manager may be more interested in his amateur comedy career than in managing the restaurant.
The team helps the owner of an Italian bistro who is concerned that his manager is acting inappropriately with the staff, picking favourites based on appearance
While investigating a Phoenix eatery, the Mystery Diners encounter several problem employees who threaten patrons, drink on the job and eat customers' food
After losing thousands of dollars in unaccounted alcohol, the owner of Big Earl's Greasy Eats in Cave Creek investigates rumours of unauthorised late-night staff parties
The owner of a German restaurant in Glendale, Arizona, fears his new manager, who happens to be his wife's nephew, is unqualified for the job
The team help the owner of Catharsis restaurant, Miami, as they have recently received complaints of theft and inappropriate behaving during a Dining in the Dark event
A pub owner in Los Angeles uses undercover surveillance to spy on a worker who she suspects is over-pouring for customers and giving away too many free drinks
The owner of a Brazilian restaurant is concerned that the meat sales are not being reflected in his profit, so asks the team to investigate
Restaurant owners ask the team for help when two employees bring their personal life into the work place and begin to effect sales and disrupt morale
A restaurant owner discovers that his manager brother is acting inappropriately with guests and asks the team to investigate
A restaurant manager contacts the team for help after noticing unusually low sales during a late shift
The owner of a Las Vegas restaurant suspects his wine sommelier is somehow negatively affecting spirit sales
The team investigate when the co-owner of a restaurant becomes concerned over a steady decline in female patrons
The owner of Parma, Las Vegas contacts the team for help after he noticed disparities in sales receipts and the inventory for his high-end Italian deli meats
Johnny, owner of Pina Pizza House in Downey, Calif., believes his frat-tastic college-enrolled waiter may be taking the party off campus and into his restaurant.
Ali, owner of Marrakesh, a Moroccan-themed restaurant in California, believes his manager may have a gambling problem outside of work that's affecting his ability to do his job.
A former waiter has threatened a lawsuit against owner Derrick, so to appease him Derrick made him a host but his laziness has not stopped.
The owner of Ca'Brea restaurant in Los Angeles has received a number of complaints about his valet service, so the Mystery Diners go undercover to investigate
The owner of La Traviata in Long Beach asks the Mystery Diners for help when he receives complaints over the quality of his fish
Charles Stiles and the mystery diners team up to discover if there is any truth behind the rumour that the head waiter is misbehaving
The owner of a Las Vegas bistro fears his restaurant manager - who is also his brother, is not doing a good job
Chef 'Grumpy Tom's' negative attitude at The Blue Moose restaurant.
The owner of an Italian bistro is worried that his manager may be acting inappropriately with staff, picking his favourites based on their appearance
The undercover team encounter several problem employees who threaten patrons, drink on the job and eat customers' food in Phoenix
The owner of Big Earl's Greasy Eats in Cave Creek, Arizona investigates rumours of unauthorised late-night staff parties at the restaurant
The owner of a German restaurant in Glendale, Arizona fears his new restaurant manager is unqualified for the job, and seeks the help of the Mystery Diners to find out
A restaurant owner in Gilbert uses undercover surveillance to spy on their chef, whom is suspected of stealing from the restaurant following a large loss in food and supplies
A pub owner in Los Angeles uses undercover surveillance to spy on an employee who she suspects is over-pouring and giving away too many free drinks
Mystery Diners counts down the greatest moments involving employee theft, including stolen food, alcohol, supplies and money.
Mystery Diners counts down the craziest schemes caught on video, from operating unauthorized businesses, to raising money for bogus charities, and even creating fake employees.
The owner of Moreno's Cuba Cafe and Riviera Hotel in Miami Beach, Fla., believes his staff is sneaking friends into the hotel's free happy hour.