Sonny auditions for the Grand Ole Opry; Will fights hijacking racketeers; guests Vera Miles, Cliff Osmond, George Lindsey.
Sonny and Will help hunt for sunken treasure.
A 12-year-old girl manages to save the partners and outwit racketeers; guest Philip Michael Thomas.
Sonny and Will's all-expenses-paid vacation turns out to be a nightmare.
A woman trucker helps the partners unseat an unscrupulous industrialist.
Sonny and Will outwit a con man and sell him 500 empty boxes that supposedly contain televisions.
A mob targets a poultry rancher whose flock alone is spared from a lethal disease.
Sonny and Will help an old man fulfill a lifelong wish of entering a hot-air balloon race.
Will decides to give up trucking and marry a dying woman.
A man who escaped from prison to save his son holds Sonny and Will hostage.
A has-been partner and loan sharks complicate Sonny's cross-country run against time.
Renegades capture a bus and threaten 20 passengers.
A miner's strike in Appalachia inflames a family feud; guest Patricia Neal.
To collect a fee from a race manager, the partners must run in a Charlotte, N.C., stock-car race.
The partners bet Benjy and Moose that they can beat them to Raleigh.
Extortionists threaten the partners and a 4-year-old girl.
A widow and her sons produce a land grant establishing their ownership of the town square of Mobile, Ala.
An elephant disrupts the trucking business; guest Keenan Wynn.
Sonny boasts about truckers' stamina in a magazine, then is challenged by Marines; guest Joe Frazier.
An extortionist's bomb is accidentally loaded on the rig.
To see the Bicentennial in colonial Williamsburg, Va., a Soviet pianist stows away in the rig.
Sonny helps a motorist (Janet Leigh), who then proposes marriage.
Sonny and Will are caught between a bigamist (John Schuck) and his wives.
The partners are instructed to toss a briefcase full of money over a cliff.
Sonny's old Navy buddy seeks the lady trucker who stole his heart.
A gift box given to Sonny and Will turns out to be full of live ammunition.
An insurance investigator (Barry Sullivan) is out to get Sonny and Will.
A premed student (John Ritter) must save Will, trapped after a landslide.
After their rig is repossessed, Sonny and Will are left with nothing but a greyhound.
An old woman (Jeannette Nolan) accuses the partners of stealing her antique car.
On Christmas Day, Sonny and Will race to find a necklace.
Sonny's search for a home-cooked Christmas dinner leads to a treasure hunt.
Will hits a winning streak in Las Vegas.
In a Northwest logging camp, unexplained accidents convince a man (Frank Gorshin) that someone wants him dead.
Sonny and Will are caught between a pacifist colony and angry local farmers.
A small town speed trap ensnares a novice trucker and Will.
A young oil-rig operator (George Maharis) hires Sonny and Will for huge salaries.
Alimony payments drain the resources of a rodeo operator.
A shortcut lands Sonny and Will in the clutches of escaped convicts.
Sonny pursues a frightened, mentally impaired boy (Clint Howard) through a forest.
The partners help a migrant worker get his wife to a cardiac specialist.
To pay his debts, a gambler considers hijacking his own truck; guest Mackenzie Phillips.