Last week, The CW released a trailer for tomorrow's The Flash episode Flash vs. Arrow, the first part of a two-night crossover event with Arrow. Today, the network has released an extended trailer, which gives us our first look at the epic battle between Barry Allen (Grant Gustin) and Oliver Queen (Stephen Amell). There is certainly tension brewing between the superheroes when Oliver first comes to Central City.

This trailer also gives us a new look at two founding members of the Rogues, Captain Cold (Wentworth Miller) and Heat Wave (Dominic Purcell). We also see Arrow stars Emily Bett Rickards, who gets caught in a compromising position with Barry, and David Ramsey. They both make the trip to Central City with Oliver to investigate a case involving a deadly boomerang.

Unfortunately, the superhero partnership doesn't go as smoothly as Barry expected. When Oliver tells Barry he still has a lot to learn, Barry sets out to prove him wrong by attempting to stop Bivolo alone. However, when Bivolo infects Barry and sets him on a rage rampage, everyone is in danger, and the only one who can stop him is the Arrow. Meanwhile, Iris is furious when Eddie tries to get a task force to stop The Flash, Joe and Dr. Wells agree the Arrow is a bad influence on Barry, and Caitlin and Cisco deal with a new team in S.T.A.R. Labs. Take a look at the new footage before tuning in to The Flash episode Flash vs. Arrow, airing Tuesday, December 2 at 8 PM ET, and the second part of the crossover, Arrow's "The Brave and the Bold" on Wednesday, December 3rd at 8 PM ET on The CW.