With Oliver (Stephen Amell) and Barry (guest-star Grant Gustin) still stuck in the other's bodies, the two get a lead on John Deegan (guest-star Jeremy Davies) and head to Gotham City with Supergirl (guest-star Melissa Benoist) to figure out why their reality has changed. While there, they meet the mysterious Kate Kane (guest-star Ruby Rose), who provides them with information that leads the group to Arkham Asylum.
Log in to comment