The Mutiny of the Elsinore.

When Captain Nathaniel Somers is killed during an attack by thugs, his loyal first mate Pike promises to care for the captain's son Dick. Pike, aware that Dick has squandered his life on having a good time, sequesters the wastrel aboard The Elsinore and sets sail. Mellaire, one of the thugs responsible for the captain's death, is also on board, as is Margaret West, whom all three men love.