The British Crown responds to the colonists' destruction of 600,000 pounds of tea by sending the ruthless General Thomas Gage to Boston to snuff out the rebellion. The general's tumultuous relationship with his wife, Margaret, leaves her vulnerable and soon, she engages in an affair with Sam Adams's close friend, Dr. Joseph Warren. To combat the growing British threat, Sam, John Hancock and John Adams meet with the First Continental Congress in Philadelphia. But when the other colonists refuse to aid Boston, Sam and Hancock take George Washington's advice and begin training their own army. When Margaret divulges Gage's plan to capture Sam and Hancock, Paul Revere sets off on his legendary ride to warn the colonists. Revere arrives in the nick of time, but while Sam and Hancock flee from their safe house, they hear "The Shot Heard Round The World" as the British face off with the colonial militia.