Rescue from Gilligan's Island 1978

Synopsis:

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.

Directed by: Leslie H. Martinson
Written by: David P. Harmon & Sherwood Schwartz & Elroy Schwartz & Al Schwartz
Release date: 1978-10-14
Runtime: 95 minutes
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Cast:
Bob Denver
Bob Denver
Gilligan 
Alan Hale Jr.
Alan Hale Jr.
Skipper Jonas Grumby 
Jim Backus
Jim Backus
Thurston Howell III 
Natalie Schafer
Natalie Schafer
Lovey Wentworth Howell 
Judith Baldwin
Judith Baldwin
Ginger Grant 
Russell Johnson
Russell Johnson
Professor Roy Hinkley, Jr.