Suzanne goes undercover at females-only El Rancho Aphrodite when a actor dies suspiciously and a boozy actress is suspected of being involved. A studio hires Bailey & Spencer to help the bombshell make it through rehab , but someone sabotages her riding saddle and plants hooch in her drawer. Spa goers include a gossip columnist, a rival starlet, and others connected with the dead actor, such as a Waco riding instructor.
An overly functional family spins Jeff's head like a Lazy Susan, over a murder/jewel heist where nothing makes sense. A precocious grandchild with a pet ocelot bedevils Roscoe, one daughter's missing, and sister Lally's draped all over Jeff. Narcotics, somnambulism, an asylum visit, an elusive psychiatrist, and a mother who makes as much sense as Gracie Allen challenge the Bailey & Spencer firm's patience and resources, as everyone feeds Lt. Gilmore straight lines.
Stuart investigates the case of a cat burglar who wears costumes from old films. He suspects Roland Dumont, an unemployed actor who has not made a film in 20 years, and rents Dumont's estate to get close to the suspect.
An army buddy of Stu's asks him to be responsible for delinquent Speed Minton. Stu and his friends make progress straightening out the troubled youth but his ex-con brother Nate shows up and tries to draw him back into a criminal life.
A popular musician Gandy Waters is believed to be the target when a member of his band is murdered. Jeff goes on the road to protect Gandy plus find the killer. He stumbles onto a case of blackmail and a very unhappy wife.
This is a one-man show as Efrem Zimbalist Jr. does a solo performance. Stu Bailey is lured to a desert hide away where an old enemy lies in wait to kill him. Only the enemy's voice is heard and never seen.
Jeff is asked by old naval buddy Captain Ivers to do undercover work at a nearby military base. He brings in Suzanne, Roscoe and Kookie as a yeoman to help protect a top secret computer project. Kookie helps out a lovelorn Harold.
Santa is killed in the holiday parade on a float with an aging actress. Then the actress is shot at during the Tournament of Roses parade. Jeff is hired to protect her. There are not many suspects, but more incidents. The police are looking foolish. Great cast including Marilyn Maxwell, Yvonne Craig, and Victor Buono.
Stu is hired by Montaigne, uncle and guardian to Drake, a wealthy youngster interested in drag racing. Threats have been made against Drake's life unless $100,000 is paid. Stu uses JR and Kookie's car expertise in solving the case.
Dr. Feld is casting the deciding vote at a European conference. Friend Stu is called in to protect his daughter Michelle from consequences and Kookie helps out. But her undercover identity is threatened by Ross who has misguided ideals.
A wealthy businessman hires Jeff and J.R. to keep the crowd and reporters away from his wedding and new bride. They end up saving the bride and solving a murder. All in time for the newlyweds to go on their Hawaiian honeymoon.
Stu is called upon to investigate why Laurie Cameron is wastingly speculating the family inheritance. He finds that whoever is advising her, however, is an expert, as the stocks soar. However, it is also learned why the Bel Air Hermit is such: he is trying to hide from an organized crime mob.
Jeff and Kookie unknowingly are working on the same case involving nefarious doings at the San Pedro docks. Kookie is helping old friend Nina while socialite Marianne employs Jeff to get the truth about the family of future in-laws.
Tom Lansing needs Stu's help to reconnect with daughter Jean as just freed from prison for killing wife Connie. She prefers the estrangement continue but then Stu learns the murder never happened. But as things improve for Tom, Connie is found dead.
Stu, accompanied by Roscoe, just wrapped up a case in England and is relaxing. But a major heist gets their attention and the London police ask for their expertise. It also gives Roscoe a chance to put his Sherlock Holmes knowledge to use.
Jeff heads to an out of the way Italian villiage to distribute an expatriate's bequest to the inhabitants. But local police Lorenzo is jealous of Jeff and kidnaps but is oblivious to two strangers from Milan intent on getting the cash.
Jeff is flying to LA on a flight with a runaway heiress, a sick lad, an anti-Communist Latin American general, and an unhappy couple. When the flight is hijacked by revolutionaries, Jeff must get everyone to stay calm and also take back the plane.
Stu and JR are lured out of town not knowing it's a subterfuge by Stu's nemesis from his espionage days. Cheva takes both men captive using Nora, a past romance of Bailey's which leaves their futures in doubt.