Stu ends up holding the bag when he's hired to help fake a robbery for the heir to a criminal family.

A borrowed car with sabotaged brakes leads to murder, and Kookie's quest to find the killer leads him into a tangle of romantic triangles and blackmail.

The detectives' former secretary walks back in after six years, suffering from amnesia.

Stu arrives in the corrupt small town where an old friend is chief of police and with the help of a senaor's wife uncovers a murder and a blackmail scheme.

Jeff becomes a bodyguard for a judge who says that if he's killed, he wants Jeff to find his murderer.

Jeff investigates a former G.I.'s story of seeing a man who was reported killed in Korea.

A millionaire hires Stu to protect his daughter from her rogue lover, a suspected swindler recently returned to the U.S. from an overseas hideaway.

Suzanne and Stu help her Hungarian friend find her mother, who fled the Communists in Budapest.

Stu teams up with private detectives from Hawaii and French and English police to discover how a pair of criminals steal from their victims and leave them physical wrecks. Folk singers Peter, Paul & Mary perform.

An astrologer hires Jeff when he begins receiving threatening phone calls, but Jeff discovers his secretary may be the real target.

Suzanne finds love when she posses as an heiress to investigate the person who's suing a client.

Stu helps a deaf librarian who ""overheard"" a a death threat in the reading room.

Sandra Keene fears that someone may try to prevent her brother Michael, a skid-row bum, from collecting his inheritance.

Stu's flight to Hawaii is stalled by a busy airline official trying to cope with a murder, a fleeing thief, a messy love triangle, and a sick pilot in the air.

After a rash of practical jokes at the office, Kookie can't convince his partners that he really has been arrested for a serious crime.

An actress cons the detectives into helping her pull off a publicity stunt, but gets more than she bargained for when a man from her past shows up with his hand out.

Stu reunites with an old flame, a recent widow, and investigates her daughter's belief that her father's death was no accident.

Jeff teams up with an insurance adjuster to recover an armored truck's lost shipment.

Stu is asked to rescue scientist Marie Harben's son, being held hostage by East German Communists to prevent her defecting to the West.

Kookie helps a Japanese friend find his uncle, who vanished with $50,000.

Kookie and J.R. are on assignment at the beach when a hit-and-run accident injures a girl they've been watching.

Stu finds a trap when he goes to collect the belongings of an industrialist and humanitarian killed in a train wreck.

Visiting professor Stu stumbles across a real mystery while teaching criminology.

A con man hypnotizes an actress into jumping out a window, then blackmails a film's producer with threats of doing the same to his leading man.

Stu becomes involved in film society when a suicide, a murder, and subseuqent attempted murders disrupt the entertainment world.