Everybody is ready to take on the newest threat. We may not know much about the Dominators, but we're pretty sure they are no match for The Flash, The Green Arrow, Supergirl, and the Legends. We will have to watch and see!
The crossover is full of visitors, but we can't forget those who have been by Barry's side since the beginning. Cisco and Kara will meet on Supergirl, but the fight begins on The Flash. It looks like she's the only one staying in costume.
Atom is ready to put that awesome new suit to good use! The timing couldn't be much better as he and Speedy come to the aide of Barry and Oliver. He should have everything he needs to take on the Dominators.
Oliver has always been there for Barry, and this time is no different. The two heroes are ready for battle, and they'll always have each other's backs. In this case, it appears to be two against one, but that could be misleading.