This is a nice shot of the perspective of being in a cage. Just a really cool photo. What are your guesses on what's going down in these blue flashbacks or whatever? We could have done with a few photos of Felicity. After all, she was in the preview video, so it's not as if we don't know she's going to be home in the episode.
What will Diggle learn about his time at war that's more than he bargained? That his brother was already in cahoots with the criminal organization Shadowspire? Andy already laid the groundwork for that news.
Oliver: Over watch, we're on sight. Felicity: Excuse me? Oliver: Well, I thought it was time you got a code name. What do you think? Felicity: It's perfect. Oliver: I was gonna go with Oracle, but it's taken.