WWII unleashes revolutionary superweapons that redefine warfare. From Britain's Bouncing Bomb and Grand Slam, to America's B-29 Superfortress, these innovations shatter defences and lay the groundwork for modern military technology.

From blasting through mountains, to building gigantic infrastructure across the sea, to the biggest battleship in history, and iconic builds like the Pentagon and the Maginot Line, WWII engineering is a battle of scale that turns the tide of the war.

In this episode, necessity sparks wartime ingenuity, turning compact tools into powerful weapons. From the Bazooka and Cavity Magnetron radar, to the Enigma code machine, to a pioneering night vision scope, engineers and scientists create faster.