NBC airs the series finale for Chuck tonight at 9.
CBS is all repeats
Olivia copes with an ominous warning from the Observers; Peter and the team track a girl with the ability to predict death.
Sarah returns from a mission with a big secret; Ellie and Awesome get a life-altering opportunity.
Chuck gets his family and friends to help stop Nicholas Quinn from destroying what he has built.
Michael runs into a former patient who is now homeless; Michael examines a patient suffering from post-traumatic stress disorder