Blackhawk. Oliver grills Ted about Paul, and Ted says jobs are hard to come by. Knox would be out there knocking over liquor stores or robbing banks if it weren't for Ted hiring him.
Felicity calls Oliver and tells him there's nothing about a scavenger hunt on the fob. There's stuff about robbing armored cars with grenade launchers, though. Don't keep that on your work computer, guys! And don't include pictures of the grenade launchers. That's just dumb. Why would you need that? You know what grenade launchers look like. The maps of armored car routes are useful, though. And there's a schedule suggesting that the next robbery is being done tonight! Oliver super-clenches as Felicity tells him she wants to send the information to the police. He has her send the information directly to him instead. And makes no mention of her promised valuable wine. Man, you should be taking care of Felicity. She's got your back.
An armored car! SUVs! But the grenade launcher gets hit by an arrow! They all have machine guns and fire them off indiscriminately, but Oliver never gets hit because he's the hero. He shoots one of the bad guys, but he doesn't kill him. He has to use a garbage can lid to protect himself from a grenade and the criminals get away.
Thea's at a big crazy party. It sounds like a rave and it's happening at Castle Queen. They throw a lot of parties, don't they? And the people at these parties never pay much attention to their hosts. Anyway, Thea got her car. Of course. Oliver says she's beautiful. Diggle shows up and tells Oliver he was with Ted the whole time during the heist and he'd put his money on Knox. Diggle goes off to check out the Blackhawk motor pool for suspicious pools of blood. Oliver slips something under Diggle's lapel and mumbles something I can't make out even after rewinding several times. Stop mumbling!
Two girls give Thea drugs called "Vertigo," which they say will make her feel "all floaty." She goes upstairs to stash them. And she sees Malcolm and Moira, who can't find any place better to do this? They've got a whole castle and they do their secret business in full view of the enormous party going on downstairs? Malcolm's showing Moira a picture of Walter to prove he's alive. Thea throws a standard tantrum and tells Moira she wishes it had been her on that boat. Then she looks significantly at the drugs in her hand.