Rescue from Gilligan's Island

A burned-out Russian satellite drops onto the island, and the Professor takes a part from it to build a barometer. The reading says a massive wave is on its way, so Gilligan (Bob Denver), the Skipper (Alan Hale Jr.), the Howells and the rest lash their huts into one big structure. Leslie H. Martinson's TV movie puts the whole group back together, fifteen years on, and the only thing any of them has is each other.