A war veteran suffering from amnesia, returns to Los Angeles from a San Francisco veterans hospital hoping to learn who he is and discovers his criminal past.

Wandered away from his asylum, an amnesiac World War I veteran falls in love with a music hall star but his amnesia makes it difficult to last.

As bare-knuckled boxing enters the modern era, brash extrovert Jim Corbett uses new rules and dazzlingly innovative footwork to rise to the top of the boxing world.