Private eye Nick Harrigan teaches eager aspiring gumshoes who become suspicious when they notice ice cream trucks making regular deliveries to a funeral home.
Nick's gun turns up missing right after Charlene goes off to confront her cheating spouse.
Nick and his students investigate a diamond-stealing racket in a pizza parlor.
The class poses as caterers at an embassy party to rescue a Bulgarian ballet dancer.
Nick's eagerness to help an attractive woman lands him in a trap set by a vengeful racketeer.
Nick and the gang bodyguard a rich woman as she attends a fancy party wearing a priceless diamond.
The class goes undercover as a motorcycle gang to retreive Nick's runaway niece.
Nick's students break into the wrong hotel room while on an assignment to retrieve stolen jewelry.
Nick tries to catch a blackmailer while the class searches her apartment for the incriminating photographs.
Nick and the students investigate a massage parlor to catch a killer.
Silvio witnesses a murder—but doesn't recognize the investigating officer as the killer.
The students search for a bomb while Nick judges a beauty pageant.
Bank robbers take Nick and his students hostage.