U.S. air dates are in MM.DD.YY form. U.K. air dates are in DD.MM.YY form.
News & Spoilers
DIGGLE IS CONSUMED WITH GUILT AND SEEKS REVENGE
As Oliver (Stephen Amell) and Felicity (Emily Bett Rickards) look for a magical solution to defeat Darhk (guest star Neal McDonough), a vengeance-driven Diggle (David Ramsey) gets a lead on Andy's (guest star Eugene Byrd) whereabouts and heads off to confront his brother. Meanwhile, Alex (guest star Parker Young) takes Thea (Willa Holland) on a vacation that quickly turns into a nightmare.
Gregory Smith directed the episode written by Oscar Balderrama & Emilio Ortega Aldrich (#420).