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.

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Nick's eagerness to help an attractive woman lands him in a trap set by a vengeful racketeer.

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Nick and the gang bodyguard a rich woman as she attends a fancy party wearing a priceless diamond.

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The class goes undercover as a motorcycle gang to retreive Nick's runaway niece.

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Nick's students break into the wrong hotel room while on an assignment to retrieve stolen jewelry.

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Nick tries to catch a blackmailer while the class searches her apartment for the incriminating photographs.

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Nick and the students investigate a massage parlor to catch a killer.

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Silvio witnesses a murder—but doesn't recognize the investigating officer as the killer.

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The students search for a bomb while Nick judges a beauty pageant.

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Bank robbers take Nick and his students hostage.

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