"A.W.O.L." is the eleventh episode of the fourth season of Arrow, and the eightieth episode overall. It aired on January 27, 2016.


Diggle must learn to trust his brother Andy 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.[1]


Preparation ran from October 29 until November 6, 2015. Shooting ran from November 9 until November 23, 2015.[2]




  • The term "A.W.O.L." stands for "absent without leave", or "absent without official leave".
  • Oliver mentions to Laurel that Barry went back in time, a reference to the episode: Legends of Yesterday.
  • Felicity makes a joke about her new codename being "Hot Wheels", a reference to the brand of toy cars. DC Comics had published a comic book series based on the brand in 1970-1971.
  • This episode introduces the organization Shadowspire, who originally appeared in the comics as enemies to Deathstroke.
  • Lt. Joyner is likely a reference to the DC Comics writer Tom Joyner, creator of Shadowspire.
  • Felicity is given the new codename "Overwatch". It is the title of a novel written by Marc Guggenheim, and was said to have been suggested by fans.[3]
  • Oliver claims that he would've called Felicity "Oracle" but the name was taken. This is a reference to the character Barbara Gordon in the comics. This also might be a joke at the fans because during the winter hiatus, it was heavily theorized that Felicity would become Oracle.
  • The writers for the episode, Brian Ford Sullivan and Emilio Aldrich appear in cameo as the pictured missing A.R.G.U.S. agents, John Le and Tim Sullivan.
  • The railguns Shadowspire pretended to steal, where stored in containers of Kord Industries.


  1. Arrow #4.11 Spoiler Description: “A.W.O.L.” - GreenArrowTV
  2. Marc Guggenheim (@mguggenheim) - Twitter
  3. Marc Guggenheim (@mguggenheim) - Twitter