Darhk's plans are in shambles and all that's left is to try to burn everything down.
With his power at unimaginable levels, Darhk sets out to regain control of Rubicon.
Facing the threat of nuclear fallout, Felicity decides to reach out to an untrustworthy ally.
Darhk's powers are back and he's decided to take control of Hive's operations.
Laurel hasn't even been dead 12 hours, but there's another Canary running the streets.
This is the episode where we find out who's in "the grave".
It's officially the post-Olicity era on Arrow. So, of course, the first thing Oliver has to do is rush to Felicity's rescue.