During the mid-1700s, the Massachusetts colonial government built a series of forts along the northwestern border, to defend against hostile French and Native American incursions. Of these, by far the most important was Fort Massachusetts, in modern-day North Adams. This fort defended the westernmost flank of the line of forts, and it was the site of several battles during King George's War. Among these was the 1746 Siege of Fort Massachusetts, when 30 colonists faced an army of nearly a thousand French and Native American soldiers. This episode tells the story of the siege and the men, women, and children who endured not only the battle itself, but also the subsequent year in captivity in Canada, where more than half of them died.