At a BioScience conference, Chuck runs into Jill, his ex-girlfriend who broke up with him and later dated Bryce Larkin. He flashes on her boss, Guy Lafleur, who is suspected to be working on biochemical weapons. Chuck is ordered to reconnect with Jill in order to gain more information on Lafleur. Meanwhile, Emmett wants the staff to take CPR lessons including a test.
Elenco: Zachary Levi , Yvonne Strahovski , Adam Baldwin , Bonita Friedericy , Brandon Routh , Joshua Gomez , Julia Ling , Linda Hamilton , Mark Christopher Lawrence , Matthew Bomer , Mekenna Melvin , Ryan McPartlin , Sarah Lancaster , Scott Krinsky , Vik Sahay .