Rescue from Gilligan's Island

Rescue from Gilligan's Island (1978) is a comedy, adventure, tv movie directed by Leslie H. Martinson rated 4.5/10.

When a decaying Russian satellite crashes on the island, the Professor uses a key component for a barometer. With that device, he learns that a massive wave is going to swamp the island. In desperation, the castaways lash their huts together into one structure in order to have any chance to ride the disaster out.