Sergeant Joe Friday and his partner Bill Gannon encounter a freaked-out young LSD user calling himself "Blue Boy"; before long, Blue Boy is "turning on" schoolchildren with the mysterious new drug.

A neo-Nazi psycho has planted a bomb somewhere in L.A. Friday and Gannon have to find it.

Friday and Gannon help an employee rescue her kidnapped boss.

A new officer has been arrested for robbing a liquor store while on an undercover assignment.

Four bandits wearing red masks commit a series of robberies.

Two con men, posing as bank examiners, are bilking the elderly out of their life savings.

An elderly apartment manager is found to have been beaten to death with a hammer.

Friday and Gannon try to figure out a pattern to a series of candy store hold-ups.

Gannon goes undercover as a buyer in order to trap fur theives.

Over $200,000 worth of Imperial Jade is reported stolen in a burglary, and Friday and Gannon are on the case.

A police officer is shot while making a routine check on a pair of paroled convicts that are parked near a liquor store.

Friday and Gannon use newspapers, radio and TV to seek the public's help in identifying a hit and run driver.

Friday goes undercover with the Department's chaplain in order to break up a gambling ring.

Friday learns about a scam artist with a novel twist: he uses an authentic Congressional Medal of Honor to solicit magazine subscriptions.

A Japanese widow is senselessly murdered, leaving her small daughter an orphan. Friday has a hard time controlling his emotions while seeking the killer.

A gang of juvenile thieves have been stealing petty items in order to gain membership into an exclusive club.

A dead man has been found in a locked room, along with a gun that could not have been the murder weapon.

A volatile teenager throws acid on the back of another student (played by a teen-aged Jan Michael Vincent), then crashes a party armed with a live hand grenade.

Joe tries to stop a burglary at an all night launderette and ends up exchanging fire with the suspect. When SID tries to find the bullet fired at Joe, they come up empty and Joe faces a shooting board with no proof the man ever fired at him.

Three con artists have been swindling businessmen from out-of-town by posing as a prostitute and two policemen. The detectives set a trap as Gannon pretends to be a manufacturer from Lincoln Nebraska.

A nervy bank robber uses innocent women to help commit his crimes. Friday and Gannon are nearly sidetracked when one of the victims lies about her involvement and later proves to have a criminal record of her own.

Bill invites Joe to dinner and a football game at his home in Eagle Rock. The only problem: Gannon's neighbors keep interrupting the visit with petty, and not-so-petty, problems.

Sgt. Carl Maxwell, a frustrated fellow detective, goes AWOL; Friday and Gannon have three days to track him down before Maxwell loses his badge for good.

A series of daring daylight house burglaries are taking place. Friday and Gannon go undercover in a laundry truck to discover the perp.

An elderly businessman, concerned about the welfare of his grandchild, informs Friday and Gannon that his daughter and son-in-law are using marijuana regularly. The young couple make no apologies for their lifestyle, which inevitably leads to disaster.