A Scottish family is selected by a disgruntled group of English Officers determined to overthrow the king. They accept the role and go to Canada where John Mackenzie takes command of a Scottish battalion in Quebec. It is selected to start the rebellion. He is removed a its commander as it is sent to fight the American uprising. However, the plan is discovered and they slip into the American colonies for safety. But the family is divided about the American revolution. One remains in the English navy, another resists helping the American cause, and others willingly join the fight. Finally the patriotic mother suggests away to end the English Army occupation and fulfill their wish of revenge.