When an old friend from Christina's acting class invites them to her millionaire husband's birthday party at his country estate, Christina and Mike run into a blackmail plot and a double murder.

Mike bets Christina's criminal-investigation instructor that he can solve a 40-year-old murder case mentioned in class. Unfortunately, what he has bet is his half of the detective agency.

Mike and Christina's night at the ballet turns to international intrigue when two Soviet dancers decide to defect.

Trying to locate a missing bookie, Mike and Christina uncover a stockbroker's embezzlement scheme.

Christina witnesses a murder, but Mike is busy with his new job as host of a daytime talk show.

Mike and Christina are trailed by a sleazy reporter as they try to locate the runaway son of a hockey player formerly married to a movie star.

Mike is suspicious of his father's new fiancee when his father appears to have won the lottery but then the ticket goes missing.

Mike and Christina fly to Paris and run into smugglers after getting a call for help from their friend Rene, who's gone abroad to work on a French film.

Mike and Christina fly to Paris and run into smugglers after getting a call for help from their friend Rene, who's gone abroad to work on a French film. Part 2 of a special two part episode which was shown at least once as the complete two hour episode.