A friend of Capt. Stubing's runs into his long-lost old flame, who has since become a nun. He professes his love for her, forcing her to make a difficult decision about her future. A woman pursues a shy astronomer, mistakenly believing that he is the renowned sex therapist/author who is travelling incognito on the ship. A young woman's pushy mother constantly nags her to find a wealthy husband. Gopher tries to cheer the woman by asking her to dance and giving her what he thinks is a cheap toy ring, unaware that it is actually a passenger's lost engagement ring.

A man spends beyond his means while trying to lavish his recently hospitalized wife with gifts. Capt. Stubing and Vicki face an interview with a child services worker, who will decide whether the captain can have full custody of his daughter. A newlywed couple has trouble consummating its relationship because the presence of the bride's bodyguards (her family is ""connected"") makes the groom nervous.

Isaac is nervous about the arrival of a famous model, who was his classmate in the first grade. The woman tries to use Isaac to make her sports-obsessed husband jealous. Two sisters overhear Janet pretending to fend off an attack by Isaac, and come to believe that a sex maniac is loose on the ship. Two attorneys must keep their affair a secret because they work for the same firm. He wants to make the relationship public and get married, but she experiences doubts. An older woman undergoes a drastic makeover to shake out of her humdrum life, and encourages her skeptical husband to do the same.

Famed author Brian Mallory gives three people free tickets to a Caribbean cruise. He then presents each of them--and Gopher--with gold coins. He explains that they are among the last people to have spent time with his nephew; and offers them $100,000 if they can track down the young man, who is believed to be on one of the islands the ship will be visiting. One of the passengers taking part in the quest is about to donate a kidney to his brother. A young woman follows him around and seems to take a special interest in everything he does. Mallory's wife finally grows tired of his aloof and cruel behavior toward her. She leaves him, and seeks comfort with Doc. An old friend asks Capt. Stubing to leave the ship to help him run his business. A jealous woman accuses Julie of trying to steal her fiancé, a man who was a casual acquaintance of Julie's in college.

As the search for Mallory's nephew continues, a mysterious man begins following Gopher, Marvin, Peter and Marcia and trying to thwart their efforts. Peter grows suspicious, and forces Mallory to come clean about his real reasons for wanting to track down his nephew. A suddenly repentant Mallory tries to make amends with his wife. Peter and his brother's fiancée grow attracted to each other. Capt. Stubing considers taking the job offer so that he can set aside more money for Vicki's college education. Julie's college friend and his crazy girlfriend continue to make her life difficult.