Chuck stars Zachary Levi as the title character, a nerdy twenty something that works at the Nerd Herd at the local Buy More. However, when his old college roomate, Bryce, sends him an email that embeds secret information into his brain, his life is completely turned around. NSA and the CIA sends their agents, Major John Casey (Adam Baldwin) and Sarah Walker (Yvonne Strahovski) to retrieve that information.
Now, Chuck is determine to keep his new life secret from his friends and family and John and Sarah will do their best to help him do so and keep him protected.