Over the centuries, many battles at sea were decided by breakthrough ships, "game changers" that turned the tide of war and made maritime history. This episode looks at these revolutionary vessels, from the War of 1812 hero, the USS Constitution, to the small and speedy CMB-4 to the mass-produced Liberty cargo ships. We also celebrate the groundbreaking designers and engineers behind the game changers, including Raye Montague, who smashed gender and racial barriers and revolutionized how U.S. Navy designs ships.