Watch: Arrow "Unchained" Clips
Watch two clips below for tonight's episode of Arrow "Unchained."
“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.”
"Arrow" airs Wednesdays at 8pm ET starring Stephen Amell, Emily Bett Rickards, David Ramsey, Willa Holland, Katie Cassidy, Paul Blackthorne and John Barrowman.