Outdistancing all competing studios, tiny PRC managed to register the title Corregidor for copyright within hours after the surrender of the Allied forces at the real-life Corregidor. PRC even ponied up the money to commission a poem specially written for the film by the great Alfred Noyes. The film finds female Red Cross doctor Royce Lee (Elissa Landi) in love with a colleague named Michael (Donald Woods). Royce in turn is loved by Dr. Jan Stockman (Otto Kruger). But when the Japanese lay siege upon Corregidor, the problems of three little people don't amount to a hill of beans. Actual combat stock footage (not from Corregidor) is intermingled with staged scenes of hand-to-hand combat between the Allies and the Japanese.