The Argyle Case

When multi-millionaire banker John Argyle is found brutally murdered in his home, suspicions are cast upon Mary Mazuret, his adopted daughter who became the sole beneficiary of his estate under his will, Argyle having quarrelled with his son Bruce. Just as the case begins to look black for Mary, Asche Kayton, a great private detective, is called in by Bruce and takes hold of the investigation.

The Night Operator at Buxton

Bob's daughter is sick, so Helen volunteers to take his place on the night run, unaware that the Blackhall gang intends to rob the train which carries a valuable gold shipment. Learning of Helen's peril, Bob and Tracy pursue the train by automobile, arriving just as the hijackers are about to explode a charge of dynamite under the rails.