In addition to the 20 preview images for "The Flash vs. Arrow," the CW has released a batch more for the second part of the crossover, "The Brave and the Bold."
Arrow "The Brave and the Bold" synopsis:
Oliver, Arsenal and Diggle track down the location of a boomerang-wielding killer named Digger Harkness (guest star Nick Tarabay) but are surprised when they come face to face with an A.R.G.U.S. team. Diggle asks Lyla why A.R.G.U.S. is involved but she defers until Harkness attacks the building, killing several agents and targetingLyla. The Arrow joins the fight and gets help from an old friend – The Flash.Harkness manages to get away and Oliver teams up with Barry again to find him before he can get to Lyla. When Harkness plants five bombs in the city that are timed to explode at the same time, both teams must come together to save the city.
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The Flash Vs. Arrow Trailer: