WE ALL FALL DOWN! Captain Marvel meets the challenge of a lifetime. When a few gloom and doom teenagers tell the Captain that heroics are a waste of energy on a dying planet, she sets out to prove them wrong - and gets more than she bargained for when they're all teleported to hostile alien territory! As Spider-Woman seeks help from some of Earth's greatest heroes, explosive villain NITRO and his spooky alien pal NADA make their move!