The film carries the slogan: ‘He Stole From the Rich to Give to the Poor’. It is a story of the ‘nobleman-bandit’, Brennan O'Malley, who is captured and imprisoned, but an attempt to drown him through flooding his cell fails. Recaptured after his escape from prison, he overwhelms a soldier and escapes again. He then holds up Lord Hastings and changes into his clothes. He escapes through a secret passage with Betty, Lady Lorrequer whom he had earlier rescued and with whom he had fallen in love. The couple cross a chasm with the aid of a human chain to elude Lord Hastings' troop of soldiers. In the pursuit, Hastings falls into the sea and is killed, while Brennan and Betty escape by ship.

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