NBC has released their official description for the Jan. 31 episode of Chuck. Beware of spoilers!
THE MISSION TO TAKE DOWN VOLKOFF REACHES A DANGEROUS NEW LEVEL, WHILE BIG CHANGES LOOM AT HOME -- MEKENNA MELVIN, LINDA HAMILTON AND TIMOTHY DALTON GUEST STAR -- As Sarah (Yvonne Strahovski) works to free Chuck’s mom (guest star Linda Hamilton), Chuck (Zachary Levi) and Morgan (Joshua Gomez) embark on their own mission to take down Alexei Volkoff (guest star Timothy Dalton). Meanwhile, Casey (Adam Baldwin) bonds with his daughter, Alex (guest star Mekenna Melvin), while Ellie (Sarah Lancaster) tries to ease Awesome's (Ryan McPartlin) anxieties over fatherhood. Bonita Friedericy, Scott Krinsky and Vik Sahay also star.