The CW has released the first promo for the last episode of "Arrow" before the season two finale which you can check out in the player below! Titled "Streets of Fire," the episode is described as follows:
"Oliver rallies his team as Slade’s soldiers attack the city. Felicity gets a call from S.T.A.R. Labs with game-changing news andThea comes face-to-face with her father – Malcolm Merlyn (guest star John Barrowman)."
Directed by Nick Copus from a script by Jake Coburn & Ben Sokolowski, "Streets of Fire" is set to air May 7th. "Arrow" airs Wednesdays at 8 P.M. ET/PT on The CW.