TEXT: (EXT. SIBERIA - NIGHT) A passenger train travels through snowy Siberia. A man opens a door and enters one of the passenger cars, closes the door behind him, and looks around cautiously. He carries a newspaper wrapped around something as he walks down the aisle. As he passes a couple of old men playing chess, a bishop piece gets knocked over into the aisle. The man kneels down and picks up the piece for the old man. OLD MAN: Thank you, sir. The man studies the chess board for a moment before getting up. MAN: Just a suggestion. The old man looks curiously at his helper. MAN: Try... Knight to C-5. The old man looks back at the chess board and tries the move. OLD MAN: You are right. The man looks pleased and moves on, continuing down the aisle. As he leaves, we see that he has left a device under one of the seats. The row of lights on the device increase with each second. The man enters the next car and closes the door. He takes a seat and begins reading the newspaper. He checks his watch. At that moment, in the previous car, the old man is about to win the chess game. OLD MAN: Checkmate. A bright light flashes inside the car. The man walks back into the previous car. The car is not damaged, but charred bodies are all that remain of the passengers inside. The man retrieves his device and leaves. (INT. LOS ANGELES - NIGHT) RACHEL: Did you crack Dean's encryption? MARSHALL: Well, I was working on it, but... I got a little sidetracked. I intercepted a string of MI-6 transmissions. They're all about the testing and sale of a prototype MPB. TOM: That's impossible. MARSHALL: Yeah, I thought so, too. RACHEL: What's an MPB? MARSHALL: Sorry. It's a micropulse bomb. These things - super nasty. Incinerate the people, leave everything else intact. DIXON: There was
SUMMARY:
A rogue element in MI-6 is testing an MPB (Micro Pulse Bomb) which incinerates people but leaves equipment intact. Through old contacts Jack learns the identity of the designer. Rachel goes to a conference in São Paulo, Brazil (should be Rio de Janeiro, because the conference is at a Beach Hotel, and there's no beach in São Paulo) to bug the designer's laptop. Under the cover name "Bob Brown", Julian Sark is there to do the same thing. Both do so successfully, and after a few drinks go back to his room for sex. In Brazil, Jack witnesses an arms transaction of a much larger MPB; one that ends in an ambush. The team realizes that Sark was the leak. Rachel and Sydney hire him. Jack and his companion are taken prisoner and moved to Tunisia. Sark arranges to buy the prisoners but gets double-crossed and is handcuffed to the bomb. Rachel manages to disarm it at last. Includes the sentence "What's a little treason between old friends?"