Watch: Arrow 4x10 "Blood Debts" Preview
Check out the promo for the next episode of Arrow "Blood Debts."
Warning: If you haven't seen tonight's episode, spoilers are present.
Oliver Queen seeks revenge when Arrow returns with all-new episodes, Wednesday January 20th on The CW!
"Arrow" airs Wednesdays at 8pm ET starring Stephen Amell, Emily Bett Rickards, David Ramsey, Willa Holland, Katie Cassidy, Paul Blackthorne and John Barrowman.