Arrow Season 4 Episode 7: Brotherhood

A new episode of Arrow, titled "Brotherhood," airs tonight on The CW.

Team Green Arrow's ongoing battle with Damien Darhk (Neal McDonough) is complicated by a shocking revelation. Thea's (Willa Holland) bloodlust returns and she loses control in front of Alex (guest star Parker Young).

Check out a sneak preview and a clip in the videos below.

Arrow stunt and fight coordinator James Bamford directed the episode written by Speed Weed and Keto Shimizu.

"Brotherhood" episode of Arrow airs tonight at 8 p.m. ET/PT on The CW.