Watch: Arrow 4x20 "Genesis" Preview
Watch the preview below for the next episode of Arrow "Genesis."
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). Original airdate 5/4/2016.
"Arrow" airs Wednesdays at 8pm ET starring Stephen Amell, Emily Bett Rickards, David Ramsey, Willa Holland, Katie Cassidy, Paul Blackthorne and John Barrowman.