On Fran and Maxwell's honeymoon aboard the yacht, Fran falls overboard and Maxwell jumps in to rescue her. They manage to make it to a deserted island. There, they have some good times and bad times in their survival, but the worst ends up being a poisonous bite that Maxwell receives. He thinks he's going to die, but luckily for him, Fran watched daytime television in the past which gave her the necessary skills to tend to his illness. Meanwhile, they are noticed missing when the yacht docked at its first port without them. The Sheffield kids, Sylvia and Niles fear the worst. Afte...