- Season 4 Episode 11
DIGGLE VS. SHADOWSPIRE
Diggle must learn to trust his brother Andy (guest star Eugene Byrd) when an enemy of their wartime past, an agent of the criminal organization Shadowspire, pays a visit to Star City. However, Diggle learns more than he bargained for about their shared time at war. Meanwhile, Oliver has to learn a whole new way of life.
Promo Video #1
See more at Arrow Season 4 "The Saga Continues" Trailer
Promo Video #2
See more at Arrow Season 4 Episode 11 "A.W.O.L." Promo