Chuck (Zachary Levi) is going to have problems this week as Casey (Adam Baldwin) and Sarah (Yvonne Strahovski) have learned Jill’s (Jordana Brewster) secret. Chuck Verus the Gravitron was written by one of the series creator’s Chris Fedak, and first aired on 25 November, 2008.

Casey and Sarah have learned that Jill is a Fulcrum agent, and Chuck could be in serious trouble with her, if he continues to pursue a relationship with her. He also learns more about what precipitated their break-up when they were at Stanford.

And Chuck already knows something is wrong when he flashes on a text he inadvertently sees on Jill’s phone. What is Chuck to do?

On the home front, Chuck’s sister, Ellie (Sarah Lancaster) is stressed because Awesome’s (Ryan McPartlin) are going to be coming for Thanksgiving, so she’s prepping, cleaning, and test-cooking all to make a good impression. What happens when they show? We’ll find out in the next episode.

Chuck meanwhile goes undercover to find out the truth about Jill, and her spy affiliations. But Jill has her own plans. When they are confronted by the Leader (Patrick Kilpatrick) things get extremely dangerous for everyone, and lives, loves and spycraft hang in the balance.

The series has truly found its feet now, balancing the humour with poignant drama and great action beats that bring spying to television in a way that had never been seen before.

The carnival sequence is well-crafted, and works thematically, and as a great part of the narrative. But it all comes to a climax in the team’s base, known as The Castle, which happily, Chuck has read the instruction manual for.

Meanwhile at the Buy More, Morgan (Joshua Gomez), Lester (Vik Sahay) and Jeff (Scott Krinsky) pull Thanksgiving duty guarding the story over the weekend. But Morgan promises the reality of a real turkey…

Chuck Versus the Sensei was written by Anne Cofell Saunders and first debuted on 1 December, 2008.

Casey’s (who gets another Firefly reference) former sensei, Ty Bennett (Carl Lumbly) has gone rogue. He’s recruiting his students to steal secrets and weapons to sell to the highest bidder, and the team has to stop him.

Meanwhile, after Awesome’s parents (played by Bruce Boxleitner – a blatant reference to the Tron poster in Chuck’s room – and Morgan Fairchild) missed Thanksgiving, they decide to show up and their enthusiasm for a wedding is more than a little off-putting. But leads Chuck to make a promise as the episode closes, to find their dad so he can walk her down the aisle.

At the Buy More, everyone is (non) competing for Employee of the Month.

More next week as Chuck continues to find his way through his professional, spy, and personal life. Make sure you check it out!