The official description has been released for the twelfth episode of season four titled “Unchained,” where the villain Calculator will make his debut, and Roy Harper makes his return to the series!
You can check out the description 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
“Unchained” is scheduled to air on Wednesday, February 3rd.