[5][6] 2nd Lt. Merle Wye, an Army Intelligence officer stationed in Hawaii, is rendered horizontal when struck in the head by a foul ball while playing for his unit's baseball team.

His superior (and manager of the team) orders the inept Merle to distant Rotohan, a Pacific island liberated from Japanese occupation some months before, ostensibly to relieve Lt. Billy Monk, who has been unable to capture a Japanese holdout called Kobayashi suspected of pilfering military supplies.

By claiming to be ordered to dangerous duty Merle tries to seduce Blue; when she discovers the ruse, she barely gives him the time of day.

Using a reluctant Tada as a "spy" they discover that Kobayashi has been stealing the supplies, all creature comforts, to feed and clothe his pregnant girlfriend.

While romancing a local girl, Akiko, Tada discovers that Kobayashi is not even a soldier but a former circus performer hidden in a cave in the hills by the villagers.