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.

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.