Doc's plans for a rendezvous are spoiled when the woman's recently dumped (and extremely depressed) sister tags along on the cruise. Doc tries to get some privacy by having a playboy romance the sister. Vicki helps a young boy's efforts to reunite his divorced parents. A woman tries to keep her husband on a short leash, as he has recently undergone heart surgery and she fears he will drop dead at any moment.

Gopher invites his widowed mother onto the ship in the hopes of cheering her up, but is hurt by her seemingly cheerful attitude, which he interprets as an insult to his father. A group of buddies takes a cruise. One of the men meets a woman who is a regular customer at the restaurant where he works. He lies about his identity because he thinks she would be put off by the fact that he is a waiter. A comic's romance with the reporter who is writing a feature about him appears doomed after she takes offense to his act.

Julie worries that her brilliant nuclear physicist friend will never find a man because her intelligence intimidates suitors. She encourages her to act dumb to attract a man's attention. Vicki befriends a wealthy young passenger. While exploring the ship, they discover a stowaway, a young boy who wants to visit his mother in Mexico. A jealous husband terrifies the crew as he constantly threatens the guys, who he suspects are coming on to his wife.