Chuck (2007)

S2E6 Chuck Versus the Ex

Title: Chuck Versus the Ex Plot: During a BioScience convention, Chuck unexpectedly encounters Jill, his former girlfriend who left him for Bryce Larkin. While catching up, Chuck has a flash about her superior, Guy Lafleur, who is believed to be involved in the development of biochemical weapons. To gather intel on Lafleur, Chuck is instructed to rekindle his relationship with Jill. Meanwhile, Emmett is keen on having the team undergo CPR training, complete with a mandatory examination.