S4, E3: Romance and comic intrigue reign on the high seas as 25 engaged couples board the Pacific Princess to compete in a "Marriage-A-Thon Cruise" and contest that takes Capt. Stubing, his crev! and their guests on a beautiful scenic journey from St. Thomas in the Virgin Islands through the Panama Canal to the Mexican Riviera for a star-studded mass wedding in a special two-hour episode. Darren McGavin, as dynamic promoter Larry Evans, recruits the services of "The Love Boat" to take the brides-and-grooms-to-be --- who are competing for a house, a car, and $50,000 in cash --- on a cruise that will wind up in a mass wedding in Acapulco. Although he can promote love, he finds out that his beautiful wife, Sheila (Debbie Reynolds), wants a divorce --- especially after she discovers that he has fixed the contest. "THE PROMOTER" was written by Ben Joelson and Art Baer. In "THE JUDGES," Gopher's life may be in danger after Doc plays a trick on him when Gopher gets too much attention from two beautiful judges, Valerie Madden (Dawn Wells) and Rina Ward (Ann Jillian). This episode was written by Tony Webster. In "THE FAMILY PLAN," written by Fred S. Fox and Seaman Jacobs, future bride Terry Walker (Erin Moran) and her husband-to-be, Ted Lawrence (Brian Kerwin), are in for a romantic surprise when Terry's mother (Kathie Browne) and Ted's father (Peter Graves) board the ship hoping that their respective children will call off the wedding. In "FOREVER ENGAGED," Tom McMahon (Ted Knight) and Mary Hubbell (Rue McClanahan) who have been engaged for nine years, suddenly find out that it's difficult to say, "I do," when they decide to get married. This segment was written by Tony Webster. A beautiful young woman (Charlene Tilton) finds out more about the men in her life when her fiance doesn't show up, sending his best man, Marv Prine (Donny Most), to keep her company and give her some heartbreaking news in "MAY THE BEST MAN WIN," written by producers Ben Joelson and Art Baer. Roger Duchowny directed the five episodes.