Brian arrives at the dock. He gets out of his car and draws his gun. Cullen appears with his gun drawn, as well. Sean tells Brian to put his gun down or he'll put a bullet in Marie's head, whom he pulls out from his car. Brian's beat, so he puts his gun down and tosses over the safety deposit key. Sean lets Marie go. She walks toward Brian, picks up his gun, turns to Cullen and smiles. She turns back around to Brian and shoots him. Whatever happened to divorce?
The Undercovers arrive on the scene too late. They find blood and eventually find Brian's body. Way to be on the ball, guys.
The trail has run cold now back at the staging area, but Leo thinks to search for anyone trying to get out of the country under the name of "George Best." Naturally, the lead checks out and a flight has been booked to London under that name. We get to see London this episode, guys!
London postcard transition. In a fancy hotel lobby, Leo and Hoyt eye a hot hotel receptionist. Leo figures he can get Cullen's hotel room number by means of seduction. Hoyt wants to try "hacking her mainframe." That is the actual euphemism both he and Leo use here. Hoyt goes up to the woman and throws on his British accent. He's actually relatively suave, but overdoes it a little bit when he uses the same line Leo used on Fiona. The receptionist seems to relish delivering a cold rejection to Hoyt who picks up his phone and walks away. Leo greets him with condolences for the crash and burn, but Bill cuts him off to show he downloaded the hotel registry to his phone while the receptionist was focused on rejecting him. Leo is stunned, as I think we all are. He phones the Blooms to let them know they are booking the room directly above Cullen's.
Cullen and Marie are in their room going over their plan. When the buyer gives Marie the money, she's to send a blank text to Cullen so he knows to turn over the drive. The text will be blank, in case the authorities are monitoring them. Clever Trevor.
Quick, close-up unpacking of gadgets. The operatives set up a camera for a video feed into Cullen's hotel room, with Hoyt and Steven in one room with the camera and Sam and Leo in another with the feed. They realize Marie is now with Cullen. This prompts Leo to wax philosophical to Sam about how all married people are liars. He thinks this includes even Sam and Steven. Samantha takes offense to this, but then Leo cites their secrecy pact as nothing more than a device for lying. Just then someone enters Marie's room with a big gift box. Leo is sure this is the money drop, so he charges in to make the arrest. Turns out it's just a box with an evening gown and a ticket to the London Symphony. Womp womp. To save face, Samantha tells Marie, "We should probably talk."