In the last episode of "Arrow," Diggle's brother Andy betrayed the team to Damien Darkh -- and Dig isn't taking that lightly, especially after Laurel's death. New photos from "Genesis" tease Dig's hunt for and confrontation with his brother, even while Oliver and Felicity look into a magical solution to defeat Damien Darhk.

RELATED: "Arrow's" Ramsey Calls Diggle "A Fractured Man Making Hard Choices"

"Genesis" (Ep# 420) -- 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). Original airdate 5/4/2016.

Additionally, a new poster for the show has surfaced online, courtesy of ComicBookMovie.com.

Starring Stephen Amell and Emily Bett Rickards and David Ramsey, "Arrow" returns Wednesday, April 27 at 8 pm EST on The CW.