NBC has released the longer official synopsis for episode 4.18, “Chuck vs. the A-Team”:
CHUCK FEARS THAT CASEY HAS A SECRET THAT MAY SPLIT UP THE TEAM â€” ROBIN GIVENS, STACY KEIBLER AND ISAIAH MUSTAFA GUEST STAR â€“Chuck (Zachary Levi) and Sarah (Yvonne Strahovski) investigate when they suspect that Casey (Adam Baldwin) is carrying out private missions. Meanwhile, Chuck fears that the CIAâ€™s seemingly-perfect new operatives (guest stars Isaiah Mustafa and Stacy Keibler) will render him obsolete. Elsewhere, Morgan settles in with a new roommate, and Awesome (Ryan McPartlin) panics when Ellie (Sarah Lancaster) embarks on a potentially dangerous line of research. Scott Krinsky, Vik Sahay and Bonita Friedericy.
This episode airs Monday, March 14 at 8/7c.