Directly after Justice League: Divided We Fall, Wally gets stuck in the Speed Force but gets sent to a unknown timeline; thats when meets his long dead mentor Barry Allen. Wally and Barry then encounter Jay Garrick, an alternate version of himself (Wallace West), Thomas Wayne, and later the Justice Society, in which they need his help to stopping WW3 between Aquaman and Wonder Woman while also stopping Reverse Flash from destroying the main timeline. Wally agrees and joins them, however he notices Barry's reluctance and gets suspicious...
