Trailer for Supergirl / The Flash crossover episode
CBS have released a trailer for their big Supergirl cross-over event with The CW's The Flash, which will see the DC speedster head over to National City (via - we assume - one of those multiverse wormholes).
World's Finest looks to be a lot of fun. Over here in the UK, we'll likely see the episode in June as Supergirl doesn't return to Sky1 until the start of April.
Last updated: 06/08/2018 14:43:49