Gilligan discovers a jungle boy living on the island. He shows them a hole in the ground that causes objects to float, and the professor theorizes that it is expelling either helium or hydrogen. He immediately sets to work building a large balloon, with the hopes of carrying one of them back to civilization.
Elenco:
Bob Denver
,
Alan Hale Jr.
,
Russell Johnson
,
Jim Backus
,
Natalie Schafer
,
Tina Louise
,
Dawn Wells
.