Jimmy, Klara, Graves, and Powell slip into Brussels undercover, chasing a critical Atlas asset named Voss—a financial mastermind whose knowledge could unravel Atlas’s entire operation. Posing as ordinary travelers, the team quickly discovers they’re already one step behind. At Voss’s empty townhouse, they find the financier dead, recently executed, and realize Atlas anticipated their every move. A chilling audio message left at the scene reveals an even darker truth: Atlas isn't acting alone. Someone within NATO is guiding Atlas’s hand, betraying the alliance from within. Now, Jimmy and his team must confront an enemy they never imagined—one hidden deep inside their own ranks.