24 September 2010,
Here's 5 Exclusive promotional images from Chuck Season 4 Episode 3: "Chuck vs. The Cubic Z" which airs on October 4th. Along with the pictures is the official Synopsis for the episode.

Chuck and Sarah’s romantic mission is cancelled with the arrival of Hugo Panzer (guest star Stone Cold Steve Austin) and Heather Chandler (guest star Nicole Richie). But Chuck grows more interested when the manipulative Heather claims to know a secret about his mom. Meanwhile, as Morgan prepares the Buy More for a huge video game release, he gets a surprise from Big Mike.

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