King Arthur learns one of his knights is plotting to take over and marry his daughter. After the King's death, the Knight wishing to marry the princess is ordered by the great wizard Merlin to remove the sword from the scabbard and prove his right to the throne.

In wartime Italy nuns in a convent regularly smuggle Jewish children out of a nearby internment camp. The Italian army officer in charge suspects what may be going on but deliberately turns a blind eye. When the Germans take over the camp security the nuns' activities become far more dangerous.

During the mid 1860s, brothers Dick and Jim Marston are drawn into a life of crime by their ex-convict father Ben and his friend, infamous cattlethief Captain Starlight. Making their way to Melbourne with the proceeds of a recent raid, the brothers meet and romance the Morrison sisters, Kate and Jean, whom they eventually marry; but just as they are poised to start a new life in America, Captain Starlight and his gang arrive in town, planning a raid at the local bank.

A beautiful redhead becomes involved with a group of small-time hoodlums who plan and perform a daring diamond robbery.