In the aftermath of the devastating events of We Are Yesterday, the Justice League is reeling from the Legion of Doom's wrathful rampage! But no time to rest for the protectors of our planet, as the secrets unlocked during their time-crossed duel have brought our heroes face-to-face with a mysterious Quantum Quorum, who has reason to fear that all of creation might soon come to an end. It's the next big step on the path of the All In saga in the epic epilogue to We Are Yesterday!