Gruber is assigned to wash Captain Binghamton's uniforms, but they are destroyed when a Japanese submarine attacks PT73. However, since Gruber's finger was injured in the attack, he is put in for a Purple Heart.
Chief Urulu asks for money after the Navy destroys coconut trees on his island. When Binghamton refuses to pay him compensation, Urulu puts a curse on him.
A plane carrying the Singing Tyler Sisters must make an emergency landing on an island after the engine begins to have problems. McHale and the 73 must rescue the women.
Guest Stars: Dale Ishimoto as The Japanese Commander
Binghamton assigns McHale and 73's crew on a mission to an island. There they make themselves comfortable, which confuses the Japanese when they see odd activity on the island.