Nick's suspicions that a man convicted of murder may have been framed lead the detectives to a remote town with its own brand of justice.
Bickering TV co-stars seek to add realism to their TV-detective roles by asking Nick, Boz and Cody to bring them along on a real case.
The detectives have the unhappy task of telling Lt. Parisi that her fiance (Vincent Baggetta) is involved in government bid tampering.
After a magazine piece credits Nick as the brains behind the Riptide agency, the trio competes for the title of most valuable detective.
The detectives join a scavenger hunt when Boz's friend Gloria finds a slain professor's notes on an unpublished Shakespearean manuscript.
Owners (Steve Allen, Barbi Benton) of a minor-league baseball club hire the detectives to identify a suspected drug dealer on the team.
A wealthy adventurer (Cesar Romero) hires the detectives to help him recover a legendary 17th-century sunken treasure; guest Ava Lazar.
Cody and old flame Janet (Jane Badler) find they have a mutual interest in locating the missing cousin of Cody's client.
In San Francisco trying to find a friend's missing cousin, Cody rekindles a romance with his college sweetheart, Janet (Jane Badler), a government employee whom he later recruits to help him find his elusive quarry.
Though Hawaiian crooner Frankie Kahana's act falls short of spectacular, the detectives consider the mob's execution plans extreme.
Marriage-minded Andrew Carlton III hires Nick, Cody and Boz to find a billboard model, unaware that she is a crime kingpin's daughter.
Nick and the niece (Kim Darby) of a dead man face losing sizable inheritances when an insurance company claims that the man was murdered.
The detectives try to prevent newly engaged Lt. Parisi (June Chadwick) from being the next victim of a serial killer who targets brides.
The father (James Whitmore) of a soldier killed in training claims that the body, which Nick escorted home, does not belong to his son.
The detectives cross the border in the Screamin' Mimi to rescue an air-traffic controller (Clu Gulager) from an alien-smuggling ring.
The Roboz is one of the items pilfered by a would-be Robin Hood, bringing Nick, Cody and Boz into a case of counterfeiting and abduction.
Nick and Cody try to defend love-struck Boz from a conniver (Kay Lenz) who wants the computer wizard to design a solar-powered car.
A reporter (Darleen Carr) hires the detectives when she links the deaths of several scientists to the development of a food additive.
Nick stubbornly resists the tempting offer of a huge security corporation to purchase the Riptide Detective Agency; guest Robert Walker.
Quinlan is forced to consult the detectives when a city councilman's (Larry Linville) credit rating is destroyed by computer wizardry.
The detectives agree to escort a government witness (Cristina Raines), a crime boss's estranged wife, from Mexico to the United States.
An anonymous note concerning a 20-year-old surfing accident prompts Cody, Nick and Boz to call on a 1960s singing star (Richard Hatch).
A harmony-seminar visit finds the detectives brawling with a participant (Lyle Alzado) and agreeing to investigate a newlywed engineer.
Cody fends off culprits in a mini-submarine while investigating an oceanographer's (Cesar Romero) report of a deep-sea toxic-waste dump.
The detectives find big trouble in a small town when Cody suffers from mistaken identity and the whole trio winds up suspected of murder.
Dooley infiltrates a boys military camp to rescue a cadet from his father, a radical who plans to send his charges on a suicide mission.
The detectives are tricked by a Vietnam War buddy who claims the CIA wants to prevent him from publishing an expose on the government.
Two housewives (Lenore Kasdorf, Belinda Montgomery) use Boz's computer gadget to execute several burglaries in a prosperous neighborhood.
Nick, Cody and Boz use electronics to infiltrate a heavily armed gambling yacht linked to the murder of Boz's friend, a noted geologist.
Cody and Nick suspect kidnapping when they discover that the job for which Boz left the agency is with a non-existent electronics firm.
Cody, Nick and Boz wind up back where they started after a mysterious man (Richard Lynch) sends them on a search for a haunted old boat.
An appreciative gesture from a multimillionaire genius (John Astin) makes Boz the recipient of a recently developed attack helicopter.
Nick searches King Harbor's back streets for his troubled girlfriend (Nancy Stafford), who has ignited a fierce battle between two pimps.
The director (Bill Macy) of the annual Miss King Harbor Beauty Pageant hires the trio to uncover who has been threatening a competitor.
Cody, Nick and Boz aid a former Hollywood screen star after her escape from the asylum where she had been held for more than 50 years.
While under cover at a Malibu club, Nick, Cody and Boz learn that an old friend working as a club lifeguard may be involved in extortion.
Dooley's prior involvement with a racetrack syndicate could jeopardize the life of the would-be actor the detectives were hired to find.
While accompanying Nick to a high-school reunion, Cody and Boz discover Nick's former football teammates are involved in drug-running.
A priest (Robert Logan) brings a baby girl to Nick, Cody and Boz in hopes that the detectives can locate the infant's threatened mother.
Cody and Nick use Murray's lie-detector to crack a tough case of an author who killed himself just prior to a scheduled TV appearance.
Part-time teacher Murray hires Nick and Cody to protect him after he falls for a student who happens to be the wife of a volatile tycoon.
A fisherman asks Nick, Cody and Boz to investigate a tale of murder after police dismiss him because he claims a mermaid was involved.
Cody, Nick and Boz re-enlist in the Army to determine whether their former commander (Gerald S. O'Loughlin) is guilty of drug smuggling.
Cody, Nick and Boz join forces with dockworker Kirk "The Dool" Dooley (Ken Olandt) to prevent the kidnapping of three wealthy coeds.
Boz and Nick both fall for the same beautiful dolphin-trainer, whose charges become implicated as accomplices in a drug-smuggling scheme.
Murray's brilliant sister (Geena Davis), Melba, convinces the detectives to help her find a sunken, gold-laden World War II submarine.
Cody agrees to help his most recent girlfriend (Marta Du Bois) find her missing sister, who is supposedly fleeing from organized crime.
Two Cambodian orphans stow away on a jet to visit their American sponsor, Nick, only to be marked for death after witnessing a murder.
A simple assignment to deliver flowers to a dead rock singer's hospitalized partner puts the detectives in the middle of a musical scam.
Nick and Cody compete with a pair of private eyes (Stepfanie Kramer, D.D. Howard) to help a woman framed for the murder of her husband.
While trying to rescue an old girlfriend, Nick and Cody become embroiled in a bizarre investigation involving murder and kidnapping.
Nick and Cody race to rescue Boz and their client, a diabetic stewardess, held hostage by a killer desperate to retrieve stolen diamonds.
A friend of Nick and Cody's hires the detectives to help find her father, who vanished in Mexico while looking for his kidnapped wife.
An escaped mental patient asks Cody, Nick and Boz to find her boyfriend's murderer -- who just might be the unbalanced client herself.
Nick and Cody work to rescue a lovely executive analyst held captive by an assassin responsible for the deaths of two of her co-workers.
An old girlfriend (Kristen Meadows) seeks Nick and Cody's help after she overhears her husband plotting to murder a police lieutenant.
Nick and Cody's search for the sunken remains of a charter boat puts them in conflict with a mob kingpin (Robert Viharo).
Detectives Cody Allen (Perry King) and Nick Ryder (Joe Penny) take the case of the survivor of a charter boat explosion.