Stream Elseworlds, the 3-episode crossover, free only on The CW App: go.cwtv.com/Elseworldsyt

Still trapped in each other's bodies, Oliver and Barry head to Gotham City with Supergirl to find out why their reality changed and cross paths with the mysterious Kate Kane.

Director: James Bamford

Writers: Greg Berlanti (developed by), Marc Guggenheim (developed by) | 3 more credits »

Stars: Stephen Amell, David Ramsey, Emily Bett Rickards