From death-defying speed link-ups of the wildest faces in the Alps, to Olympian displays of strength and tenacity on the hardest boulders ever ...

Schoolteacher William Potts is the double of a captured German spy, so he is sent to Germany by British Intelligence to obtain the plans of a new ...

American racketeer Jimmie Dean travels to England, where he assumes the identity of a Canadian whom he has been falsely accused of murdering. ...