Oliver, Lance, and the new police captain head down to the waterfront to meet an incoming A.R.G.U.S. team coming in underwater.
Lance is walking down the street watching news footage when he spots Black Siren following him.
Vincent reassured Dinah that he didn't know about the A.R.G.U.S. team and says he has no information on the bomb's location.
Oliver and Diggle track down Vincent only to find him meeting with the other team.
Dinah thinks back to the last undercover mission she and Vincent were on together.
Dinah and her team assault the hideout to rescue Vincent.
Diggle and Oliver assault the warehouse containing the thermobaric bomb.