Mr. Howell ends up betting on sinking golf putts with Gilligan and Gilligan wins 3 million dollars, Mr. Howell tries to figure out a way to trick Gilligan out of the money.

Gilligan is in the lagoon trying to catch food and see's what he thinks is a sea serpent. Later it turns out to be a Japanese world war II mini one man submarine who's pilot is not aware that World War II has been over for more than 20 years.