High Quality Content by WIKIPEDIA articles! "Chuck Versus the A-Team" is the eighteenth episode of the fourth season of Chuck. It aired on March 14, 2011. Chuck Bartowski and Sarah Walker suspect John Casey is carrying out private missions. Chuck fears the CIA`s new operatives (Isaiah Mustafa and Stacy Keibler), who have downloaded the Intersect, will render him obsolete. Morgan Grimes settles in with Casey, his new roommate. Devon Woodcomb becomes uncomfortable with Ellie Woodcomb`s research.