Chuck Versus the Suitcase (S04E02)

Chuck and Sarah travel to fashion week in Milan to retrieve a high-tech secret weapon. While they are undercover, Chuck realizes what the "Achilles' heel" is in their relationship, but he must set personal issues aside for the mission. Meanwhile, Morgan recognizes a fatal flaw that compromises the new Buy More. Elsewhere, Casey struggles to put down roots in Burbank. Karolina Kurkova, Lou Ferrigno and Isaiah Mustafa guest star. (Warner Bros. UK)