Fuelled by his restored faith in humanity, plus Batman's selfless act of exile, Clark Kent has now rebuilt the Justice League, while also living a life of peace with his family. However, when his children deliver the horrific news of Brainiac's return to him and the League, Superman must call Bruce Wayne back into the League, in order to face Brainiac once more. However, little do the Justice League know that, this time around, Brainiac isn't alone...