When his father is falsely convicted and sentenced to die for a murder committed aboard ship, the man's son signs on as a crewman to discover the real killer and clear his father.

Johnnie Walker
as Frank Armstrong

Shirley Mason
as Ruth Enright

Tom Santschi
as Grim Hawley - Sea Captain

Frank Hagney
as Bull Marlow

Boris Karloff
as Grouchy

Horace B. Carpenter
as (unconfirmed)

George Magrill
as

Joseph Bennett
as Deaf mute

Arthur Dewey
as Droop Johnson

Joseph P. Mack
as