As the universe faces devastation from a new threat, intergalactic warlord Thanos seeks to collect all six Infinity Stones, artifacts of unimaginable power, and use them to inflict his twisted will on all of reality. Everything the Avengers have fought for has led up to this moment - the fate of Earth and existence itself has never been more uncertain. Scattered across the cosmos, the heroes must unite and be willing to sacrifice everything as they prepare to confront Thanos.

The disparate groups of heroes, including the likes of Iron Man, Thor, the Hulk, and the rest of the Avengers, must rally to counter the omnipotent enemy as he begins his blitz of devastation and ruin across the interstellar states. On one side, Iron Man and his faction seek to prevent Thanos from retrieving the stones on Earth, while Thor quests for a way to gain the strength needed to challenge the Mad Titan. As the battle rages on, the warriors face challenges that will test their resolve and willingness to fight for the survival of all.