Sneak Peek more new footage from Part 2 of The CW's "Arrow" and "The Flash" crossover episode "The Brave and The Bold", from a story by Greg Berlanti, Andrew Kreisberg, teleplay by Marc Guggenheim, Grainne Godfree Schwartz and directed by Jesse Warn, airing December 3, 2014:
"...but are surprised when they come face to face with an 'A.R.G.U.S.' team.
"Diggle asks 'Lyla' (Audrey Marie Anderson) why A.R.G.U.S. is involved...
"...but she defers until Harkness attacks the building, killing several agents and targeting Lyla.
"The 'Arrow' joins the fight and gets help from an old friend – 'The Flash' (Grant Gustin). 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..."