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.

Gilligan

Skipper Jonas Grumby

Thurston Howell III

Lovey Wentworth Howell

Ginger Grant

Professor Roy Hinkley, Jr.

Mary Ann Summers

Dimitri

Ivan

Producer

Mrs. Devonshire

Mrs. Fellows

Butler
October 14, 1978

Gilligan

Skipper Jonas Grumby

Thurston Howell III

Lovey Wentworth Howell

Ginger Grant

Professor Roy Hinkley, Jr.

Mary Ann Summers

Dimitri

Ivan

Producer

Mrs. Devonshire

Mrs. Fellows

Butler

