During a crossing, Professor Rabas, a famous tamer, meets a certain Raymonde whom he brings back with him to his circus. The presence of the young woman leads to disagreement between Rabas and his younger brother, Léo; she suggests to the latter to enter the cage of the untamed lions, where he is injured. Rabas and Leo understood the lesson; Raymonde is hunted like an evil beast, and calm returns to the circus.

Rabbas et son jeune frère Léo dirigent ensemble, en bonne entente, un cirque itinérant. L'arrivée de la belle Raymonde va installer la discorde entre les frères.