Zachary Levi stars as Chuck Bartowski, the Buy More electronics store computer geek who unwittingly becomes the government's most vital secret agent. At the end of Season 2, Chuck was transformed into the Intersect 2.0 after receiving another data download into his brain. This time, he not only knows government secrets, he knows kung fu! Chuck finally has the potential to become a real agent. There's just one problem — his emotions. Can Chuck keep them in check as he assumes his new role as the Intersect 2.0? His handlers, Sarah Walker (Yvonne Strahovski) and John Casey (Adam Baldwin), will still be there to protect him, but they also must help him become the agent he is destined to be.
Chuck’s third season features more missions, more action, and guest stars galore, including Brandon Routh as CIA Agent Daniel Shaw; Kristin Kreuk as Hannah, a potential love interest for Chuck; Angie Harmon; Robert Patrick; Armand Assante; Steve Austin; and Vinnie Jones.