Arrowverse ‘Elseworlds’ new trailer has everyone confused

Barry and Oliver switch places in this new trailer for the Arrowverse crossover episodes, ‘Elseworlds’

Barry Allen and Oliver Queen have traded places in this new trailer for ‘Elseworlds‘, the upcoming Arrowverse crossover event:

Elseworlds‘ stars Grant Gustin, Stephen Amell, Candice Patton, Danielle Panabaker, Carlos Valdes, David Ramsey, Emily Bett Rickards, Echo Kellum, Melissa Benoist, Mehcad Brooks, Chyler Leigh, Tyler Hoechlin and Bob Frazer, with guest stars Ruby Rose, Elizabeth Tulloch, Cassandra Jean Amell, Jeremy Davies, LaMonica Garrett and John Wesley Shipp.

Here’s the synopsis for the crossover event:

The three-night event begins with Arkham Asylum doc John Deegan (Lost’s Jeremy Davies) rewriting reality, which results in Oliver (Amell) and Barry (Gustin) swapping lives. In this new reality, Oliver Queen looks like Gustin and Barry Allen looks like Amell, and the two heroes are the only ones who know they’re in the wrong lives and have each other’s powers. This not only explains what’s going on in the recent promos, but also why the actors have swapped costumes.

Elseworlds‘ will premiere on The Flash on 9 December in the US, and then on Arrow on 10 December and on Supergirl on 11 December. Get all the latest sci-fi news with every issue of SciFiNow.