"Chuck Versus the Suitcase" is the second episode of the fourth season of Chuck. It originally aired September 27, 2010. There are crimes of fashion when Chuck Bartowski and Sarah Walker go undercover in Milan for Fashion Week to seize a high-tech weapon, yet Chuck soon recognizes a flaw in his relationship with Sarah. Meanwhile, Morgan Grimes discovers a vulnerability about the new Buy More. Plot Main plot In Milan, a US intelligence operative chases a Volkoff operative named Sofia Stepanova (Karolína Kurková), who stole an ammunition clip containing smart bullets from a weapons development facility outside Paris. She kills him with one of the smart bullets. In a Team Bartowski briefing, General Beckman reveals that Sofia is the executor of Volkoff's most important weapons dealer, using her cover as a runway model. Beckman sends Chuck and Sarah to Milan Fashion Week to intercept the bullets. Sarah sees Sofia and guesses that the bullets are in Sofia's purse. Chuck Bartowski moves to retrieve it, but he is unsuccessful, and Sofia gives her purse to a bartender. When they catch him, the purse instead contains a ticking time bomb. Chuck grabs the bomb, triggering a dead man's switch, but Sarah manages to defuse it with one second to spare. Later, they break into the Presidential Suite where Sofia is staying. As they start to open her safe, Sofia enters the room and takes a shower. While Chuck flashes to open the safe, Sarah encounters Sofia's long-time bodyguard (Lou Ferrigno). Just as Chuck removes the smart bullets from the safe, a naked Sofia holds him at gunpoint. Sarah incapacitates the bodyguard and she and Chuck escape with the bullets. When they return to Castle, they are informed by General Beckman that Sofia was one step ahead of them, and the microchips have been removed from the bullets. Chuck and Sarah return to Milan after they realize Sofia hides the microchips in a sequined dress. They pass Sofia's sentries with tranquilizer gloves and Sarah changes into the dress. Chuck is challenged by her bodyguards, whom he defeats with a flash on staff fighting and his tranquilizer gloves. Meanwhile, Sofia sees Sarah and they get into a fight, which drags out onto the catwalk. Sarah defeats Sofia, and the microchips are recaptured. Buy More Morgan Grimes begins to notice a serious flaw in the new Buy More. The government personnel are so well trained