AllMovie

After he rescues native girl Midori (Kilani) from drowning, Gilligan (Bob Denver) finds himself saddled with the girl for life: out of gratitude, she has vowed to be his eternal slave. This does not sit well with the Skipper (Alan Hale Jr.) or the Professor (Russell Johnson), both of whom are quite smitten by the toothsome Midori. Even worse, the girl's native boyfriend Ugandi (Michael Forrest) shows up and challenges Gilligan to a "duel a mort" (that's "duel to the death" for those of you monolinguists out there!)