Elseworlds - A DC Crossover Event (UK-import)
Three-episode crossover event featuring DC superheroes from 'Arrow', 'The Flash' and 'Supergirl'. On Earth-1, an alteration to their timeline causes Oliver Queen (Stephen Amell) and Barry Allen (Grant Gustin) to switch bodies. After being locked up in S.T.A.R. Labs, the duo travel to Earth-38 in search of answers and enlist the help of Supergirl (Melissa Benoist) before heading to Gotham City to restore reality.