기록영화 제작자 데남은 공룡과 싸우면서 신장 18미터의 섬의 왕자, 킹콩을 사로잡아 뉴욕으로 데리고 돌아온다. 하지만 카메라 플래쉬에 놀란 킹콩은 창살을 부수고 뛰쳐나와 사랑하는 앤을 붙잡아 엠파이어 스테이트 빌딩의 옥상으로 오른다. 그러나 복엽기로 공격을 받고, 앤을 지키면서 부상입은 킹콩은 떨어져서 죽는다.
Hearing his brother the Express Clerk is in trouble, Bob Williams rides to the Express Office only to find the safe open, his brother and the money missing, and himself accused of the robbery. To clear himself he trails and finds the outlaws engaging them in a fight. But during the melee, the gang leader double-crosses his men and sneaks away with the money and Bob now has to catch him.
Against explicit orders, a vainglorious cavalry major insists on counterattacking a gang of hostile Sioux Indians. His captain refuses to comply and is arrested for insubordination and cowardice.
Ranch hand Tex Gardy comes to the aid of the father of the girl he loves, whose ranch is being threatened by a gang of criminals led by a woman known as The Hellion.
