io9 Roundtable: Breaking Down the Earth-Shattering Arrowverse Revelations of Elseworlds Part One

Elseworlds, this year's big DC/CW crossover, is upon us--kicking off in last night's episode of The Flash, the mysterious Monitor made his move... and gave us an hour of giggle-inducing metahumor in the process, along with some pretty key character moments for TV's finest heroes. It was so huge, io9 needed a teamup of...