New "Arrow" Trailer Highlights Second Half of Season Four, Return of Roy

"Arrow" returns with its first new episode in more htan a month this Wednesday, and series star Stephen Amell shared a new two-minute trailer on Facebook for the second half of the DC Comics-based show's fourth season -- highlighting the return of Roy Harper (Colton Haynes), the increasing threat of Damien Darhk (Neal McDonough), the fate of Felicity (Emily Bett Rickards) and plenty more.

"Arrow" airs 8 p.m. Wednesdays on The CW. Here's the official description of Wednesday's midseason premiere, "Blood Debts":

THE AFTERMATH - Oliver (Stephen Amell) must deal with the devastating consequences of Darhk's (guest star Neal McDonough) last attack. Seeking revenge, Oliver goes on a brutal manhunt looking for Dahrk. Jesse Warn directed the episode written by Oscar Balderrama & Sarah Tarkoff (#410).

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