Oliver and Diggle race to cease the Dark Archer from unleashing his vengeance on The Glades. Nonetheless, they run right into a roadblock after Detective Lance picks up Felicity for questioning. Tommy and Oliver's already tumultuous relationship takes a flip for the more serious after Oliver makes a confession about Laurel. After listening to of the hazard in The Glades, Thea races to search out Roy, inadvertently placing herself straight within the line of fireside for Malcolm's devious plan. On the island, Oliver, Slade and Shado are locked in a life-or-death battle towards Fyers as his missiles lock on a full Ferris Air jetliner.