In the Season 4 finale, the team scrambles to soundly trounce Vivian Volkoff (Lauren Cohan) before she can destroy Chuck and Sarah’s big wedding. Also in the mix: Alexei Volkoff (Timothy Dalton) and a thuggish agent (Richard Burgi).
Chuck and Sarah work to get Chuck’s mother to the wedding alive; Morgan’s best man duties include facing Vivian Volkoff; Ellie prepares for the rehearsal dinner.
Chuck puts his spy endeavors on hold to delight in his bachelor party, but the big bash takes surprising turns because of some uninvited guests. Elsewhere, Ellie unearths game-changing information while snooping into her father’s computer.
Chuck and Sarah turn to Sarah’s father for help when they are conned out of their wedding money; Morgan pushes Casey to face Alex’s mother.
Chuck tries to prove Vivian Volkoff’s innocence after the CIA orders her assassination; Ellie thinks her search into her father’s past is being interfered with.
Chuck investigates after a murder takes place in Castle; Awesome is alarmed by Ellie’s new hobby; Morgan’s leadership is tested.
Chuck and Sarah suspect Casey is carrying out private missions; Chuck fears the CIA’s new operatives will render him obsolete; Morgan settles in with a new roommate; Awesome becomes uncomfortable with Ellie’s research.
Chuck encourages Vivian (Lauren Cohan) to get in touch with her inner villain for a mission; Morgan’s search for a new roommate has unexpected results.
The team is sent to England to protect a reclusive heiress; Casey gets an offer from Jane Bentley (Robin Givens); Ellie and Awesome solve a parenting problem; Morgan considers a move.
After Chuck reunites Sarah with her former spy team, old grudges and secrets are revealed; Morgan fends off the advances of a former flame.