The CW has released the official synopsis for "Unchained," the upcoming, February 3 episode of Arrow.
The episode sees Roy Harper returning to Star City while Team Arrow faces The Calculator and Nyssa readies to make her move against Malcolm Merlyn.
You can check out the synopsis 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. Kevin Fair directed the episode written by Speed Weed & Beth Schwartz (#412). Original airdate 2/3/2016.