In the aftermath of their devastating defeat by the powerful alien tyrant, the remaining members of Earth's mightiest heroes are fractured, mourning, and desperate to right the cataclysm that erased half of all life in the universe. With time moving on and the world struggling to cope with the loss, the heroes are scattered and searching for a way to reverse the irreversible. Entrenched in their personal agonies, some seek solace in creating a new sense of purpose, while others remain haunted by their failures and the friends they couldn't save.

An unforeseen opportunity presents itself when a chance at undoing the past emerges, offering a sliver of hope to the beleaguered team. This sparks the heroes into action, embarking on a daring and risky mission that will require them to confront their own demons, make tremendous sacrifices, and challenge the constraints of space and time. Their path is fraught with internal conflicts, changing relationships, and the weighty acknowledgment that in their endeavor to reset the balance, the stakes are higher than ever. Through their journey, they are forced to reckon with the consequences of their actions and the reality that even if they succeed, nothing will ever be the same again.