Living quietly under the assumed name Paul Sernine, reformed gentleman crook Arsene Lupin is summoned to protect his invalid, wealthy friend Henry Forbes.

Convict Bill Hyde and his friend, Danny Dorgan, break out of prison, but in running from the guards, Danny is mortally wounded. The local doctor, Evan Thomas, tries so hard to save Danny that later, when Bill and the doctor meet in Alaska, the two become friends. A dying man gives his mine to the doctor, but upon discovering that it is worthless, Bill sells it to a crook named John Wesley Slayforth...

During a raid on a gambling establishment run by her father, Cosmo Lester, Diana Lester rescues Hugh Carton, a member of the English Parliament and a candidate for the Cabinet. Hugh gratefully offers Diana a position as his sister's companion, and soon, the two fall desperately in love.

Eunice Torrence (June Elvidge) has wed the elderly Geoffrey Farrow (Joe Herbert) only because her mother (Isabelle Berwin) wanted her to marry money. But Farrow is a rotten character and Eunice, who really loves Don Chadwick (John Bowers), immediately regrets her decision.