In 1943,
World War I veteran Jim Butler (
Montagu Love), along with his daughter Nona (Inez Cooper) and their English servant and friend, Harry Adams (Ernie Adams), live on Sunday Island, a small island in the South Pacific. Their idyllic life is shattered when an air battle takes place over the island. One pilot bails out of his damaged aircraft while the other pilot manages to land. A German pilot, Lt. Kurt Heinmann (Henry Guttman) finds that the American pilot Allan Scott (
Edward Norris) is unconscious, but before he is killed, Mona entreats Heinmann to bring the wounded American to her home. Butler is afraid that either pilot will contact their superiors about the valuable oil deposits on the island, so he takes control of the situation, confiscating the German's pistol and insisting that both antagonists agree to a truce. Heinmann has a secret ally on the island, Captain Van Bronck (Robert Armstrong) and together, the two make plans to have Japanese invaders to take over the island. An uneasy alliance of Butler and the American pilot is needed to beat back the attack, but ultimately, the islanders and their friends are able to summon help from the Americans. Mona and Scott declare their love and prepare for a life together. ==Cast==