Chuck

Last episode

S03E18 - Chuck Versus the Subway - May 24, 2010

Next episodes

S04E01 - Chuck Versus the Anniversary - September 20, 2010

Summary

Chuck
Chuck is a nerdy computer tech who has a database of government secrets downloaded into his brain. He soon finds himself recruited by veteran NSA agent John Casey for espionage work with his new partner Sarah, leading Chuck to live a split life of computer geek and secret NSA missions.

Official web page
Summary at tvrage.com