Synopsis
Lieutenant Commander John Byrne of the Naval Secret Service and his partner Pvt. Bill Riggers chase criminal Dr. Sin Fang, who is desperate to find a lost sacred seal. (The fifth and only surviving episode of a six-part serial about an evil mastermind inspired on Sax Rohmer's Dr. Fu Manchu.)
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Cast
- H. Agar LyonsDr. Sin Fang
- Fred PaulLt. Comdr. John Byrne R. N. of the N. S. S.
- Wally PatchPrivate Bill Riggers
- Fred RainsProfessor Harbray
- Evelyn ArdenBetty Harbray
