Robert Castleback is in possession of secret papers which could bring a certain prince to power under conditions which would make Castleback a ruling force in Europe. Master crook Arsene Lupin becomes aware of Castleback's bid for power and, in the interests of France, begins a search for the plans.
Wedgwood Nowell
Ralph Lewis
Wallace Beery
J.P. Lockney
William V. Mong
Colin Kenny
Milton Ross
Thornton Edwards
Frederick Vroom
Mark Fenton
Kathryn Adams
Laura La Plante
Vera Steadman