The Love Boat (1977) : 4x6

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.