A tugboat captain serves under his rival as a U-boat chaser in World War I.
as John Thorson
as 'Rocky' Blake
as Susan Thorson
as District Commander
as U-Boat Captain
as 'Cap' Finch
as Milo
as Ives
as German U-Boat Officer
as Admiral Ross
as U-Boat Petty Officer
as Ensign Dyer
as Admiral Girard
as Recruiting Officer (uncredited)
as Fisherman (uncredited)
as Fisherman (uncredited)
as Recruiting Officer (uncredited)
as Fisherman (uncredited)
as Listener (uncredited)
as Radio Operator (uncredited)
as Sailor (uncredited)
as Lieutenant (uncredited)
as Captain (uncredited)
as Man with Finch (uncredited)
as Mrs. Gill (uncredited)
as Fisherman (uncredited)
as Petty Officer (uncredited)
as Lookout (uncredited)
as Recruiting Officer (uncredited)
as Survivor (uncredited)
as Lookout (uncredited)
as Sailor (uncredited)
as Fisherman (uncredited)
as Fisherman (uncredited)
as Surgeon (uncredited)
as Fisherman (uncredited)
as Wireless Operator (uncredited)
as Boy (uncredited)
as Signalman (uncredited)
as Sailor (uncredited)
as Fisherman (uncredited)
as Fisherman (uncredited)
as Nurse (uncredited)
as Radio Operator (uncredited)
as Orderly (uncredited)
as Fisherman (uncredited)
as Naval Aide (uncredited)
as Old Sailor in Bilge Area (uncredited)
as Wireless Operator Sending Coded Message (uncredited)
as Engineer (uncredited)
as German Operator (uncredited)
as German Sailor Looking for Wireless (uncredited)
as Cook on Tugboat (uncredited)
as Sailor (uncredited)
as German Sailor (uncredited)
as Shore Patrol Sailor (uncredited)
as Young German Sailor (uncredited)
as Junior Officer Standing by Map (uncredited)
as German Officer (uncredited)
as German Sailor (uncredited)
as Sailor (uncredited)
