Chuck and Sarah race against time to take down a dangerous computer virus, pitting them against Robyn Cunnings (guest star Rebecca Romijn), a ruthless spy who will stop at nothing to get what she needs. Meanwhile, Ellie and Awesome's date night takes a dangerous turn and Morgan is sent on a special mission to recover Chuck's P.A.N.T.S.

Cast: Zachary Levi, Yvonne Strahovski, Joshua Gomez, Ryan McPartlin, Mark Christopher Lawrence, Scott Krinsky, Vik Sahay, Bonita Friedericy, Sarah Lancaster, Adam Baldwin, Rebecca Romijn, Joseph Gatt, Mikal Vega