Rigging a horse race, Don Carlos wins a lot of money. When he loses his winnings at the gambling table, he shoots the dealer with Horton's gun. Horton is arrested but cannot prove his innocence.

A deranged killer escapes into the Canadian woods. He tries to fool the locals by pretending he is a well known mystery writer, but the local Mountie starts to get suspicious.

While a ship's captain is being slowly poisoned, a gang of thugs try to take over the ship.