Lt. Robin Crusoe is a navy pilot who bails out of his plane after engine trouble. He reaches a deserted island paradise where he builds a house and begins to adjust to life. He is in for trouble however when a local girl is banished to the island by her father, who then comes after Crusoe.

A crooked police detective masterminds a robbery then fights to keep the stolen money.

An eccentric millionaire and his grandchildren are embroiled in the plights of some forest gnomes who are searching for the rest of their tribe. While helping them, the millionaire is suspected of being crazy because he's seeing gnomes! He's committed, and the niece and nephew and the gnomes have to find him and free him.