The Avengers are in disarray - scattered across the world, even the galaxy, some have gone to ground, and Steve Rogers and Tony Stark aren't even talking. So they're ill-equipped to fight back when Thanos makes his play to capture all the Infinity Stones - once and for all - so that he can enact his plan to wipe out the population of half the universe. When New York is attacked and Doctor Strange, the guardian of the Time Stone, is kidnapped, Iron Man and Spider-Man give chase. After the destruction of Asgard and the loss of his family, Thor finds some unlikely rescuers and a new purpose. Meanwhile, it falls to Captain America to unite what remains of the Avengers back on earth to fight back, with the future of the universe in their hands.