And that command is led by U.S. Navy captain Edmund Lowe, who must defend the strategic Panama Canal from sabotage at the hands of sinister foreign agent Bela Lugosi (his first American film role) in this intriguing silent thriller. Carl Harbaugh, Betty Jewel, Martha Mansfield also star. 79 min. Standard; Soundtrack: music score; bonus short "It's a Gift" (1923). Silent with music score.