The Love Boat (1977) : 7x20

A U.S. Presidential-hopeful Senator falls for a businesswoman who intends on opening a large casino in Hong Kong, as his aide tries to derail the affair for P.R. reasons; a woman who simply can't stop shopping bets her husband $25,000 that she can go the entire cruise without buying anything; Julie and Vicki double date, though Vicki secretly falls for Julie's date; an retired spy finds love in the form of a woman secretly hired to keep him safe from revenge-seeking former adversaries; Gopher and Isaac, trenchcoats and all, tail the former spy through Hong Kong and see all sorts of potentially evil stalkers.