An FBI agent goes undercover to investigate the sabotage of American cargo ships.
Joseph Cummins
FBI Director Sinclair
Rucca
Hugo Stregel
Mitchell (uncredited)
FBI Chemist (uncredited)
Vic, Stregel's Thug (uncredited)
Pelly, Stregel's Henchman (uncredited)
Gruning, Stregel's Henchman (uncredited)
