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.)
H. Agar Lyons
Dr. Sin Fang
Fred Paul
Lt. Comdr. John Byrne R. N. of the N. S. S.
Wally Patch
Private Bill Riggers
Fred Rains
Professor Harbray
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March 11, 1928
30m
10.0
Fred Paul
Patrick K. Heale
1
P. E. P.
N/A
BFI
GB
Evelyn Arden
Betty Harbray
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