Arrow: Unchained Photos Released

The CW has released a number of teaser photos for "Unchained," the upcoming episode of Arrow that introduces The Calculator, a dangerous villain with mysterious ties to Felicity Smoak.

Kevin Fair directed the episode from a script written by Speed Weed and Beth Schwartz.

You can check the photos and official episode synopsis out below.

ROY HARPER RETURNS; NYSSA MAKES HER MOVE -- The team faces off against a formidable villain nicknamed The Calculator (guest star Tom Amandes). Meanwhile, Nyssa (guest star Katrina Law) makes her move and Roy Harper (guest star Colton Haynes) returns to Star City.

"Unchained" will air on Wednesday, February 3 at 8 p.m. ET/PT on The CW.