Boston bookshop owner, Henry Knox, used his bookish interest in military manuals to become the chief artillery officer for General Washington. Chef Walter Staib visits Fort Mercer to learn how Knox and a rag-tag militia helped win America's independence. Chef Staib cooks "pease" soup with pork shanks and Sally Lunn toast, Hunter's stew with rabbit, beef, turkey and pork, skillet potatoes and lights cannonball punch on fire.