AllMovie

Larry Storch guest stars as bank robber Jackson Farrell, who is dropped off on the island by helicopter after pulling off a big job. At first attempting to pass himself off as a visting doctor, Farrell reveals his true colors--not to mention a big gun--when his henchmen arrive. Taking the castaways prisoner, Farrell demands that Gilligan (Bob Denver) lead him to the hidden loot...but soon wishes he hadn't!