Roles are switched when Chuck defends Casey, and the future of the team is jeopardized

This review may contain spoilers.

It was a long time coming; many fans of both Chuck and Firefly have been wondering when the gun-toting Adam Baldwin was going to get his day in the spotlight.

For those fans, this was the episode to watch as it was a Casey-centric rollercoaster between getting his background story and having his future unbalanced. As an added bonus, Robert Patrick, who is no stranger to sci-fi, guest-starred as the black-ops-turned-Ring-agent Col. Keller.

Being the tough guy and muscle of the group came natural to Casey -- he's saved Chuck (Zachary Levi) so many times, it was only natural that when Casey was in trouble, Chuck would be there for him. Except, we found out that Casey wasnt really Casey at all -- having met Col. Keller when a young marine, Casey chose to terminate his identity in order to enter a black ops team. Always the one who was all about the job, it was fascinating to get a little of Caseys background story and see that the tin man actually did have a heart.

While we were getting Caseys background, we were also privileged to see the best of Chuck. Seeing him back in cahoots with his best friend Morgan (Joshua Gomez) showed Chucks loveable nerdy side. Seeing Chuck flash and do flips and kung fu finally alluded to the Chuck we were introduced to at the beginning of the season, but who has been sadly absent paralleling his problems with the Intersect. Now that Chuck purged his emotions, he was more of the Chuck that we want, and clearly the Chuck that Sarah (Yvonne Strahovski) wants.

Casey managed to steal the pill Laudanol from the CIA base, although Chuck saw him. In an odd twist of events where Chuck thought that he was being tested, he outed Casey, causing a rift in the team. Not one to turn his back on Casey, who always had his back, even if he always smirked about it afterwards, Chuck disobeyed Beckman (Bonita Friedericy) with Sarah to save him from both his government punishment and the Ring. Unfortunately, it looked like the Ring and Keller had a tighter hold on Casey. Before the shock of his betrayal became too much, it was revealed that in Caseys background there was a former fiancée that he had to give up in order to pursue the job he wanted.

When watching Caseys face throughout the episode, we could see how much pain he was in when having to make the choices that he did, even when they were the wrong ones. In fact, everyone was forced to make choices in this episode. Awesome (Ryan McPartlin) and Ellie (Sarah Lancaster) made the choice about whether to stay for Ellies fellowship or whether to get away from the possible danger by doing Doctors Without Borders. Sarah was left with the choice about being reassigned. After experiencing what it was like to be completely without emotions and a perfect spy with the Intersect (thanks to the special pill), Chuck was left with the choice of whether or not to pursue Sarah ... again. Only this time, it was under the encouragement of Casey, who gave up everything including a daughter and got kicked out of the government. The future of the entire team is in the balance, and next weeks episode looks like it has the return of Shaw (Brandon Routh) to help all of them deal with their problems.

What Worked

Caseys one-liners, smirks, and muscles have always been a fun part of the show. His predictability in his actions almost makes him part of the background. He will always be there, he will always take out the bad guy, and he will always be carrying the biggest gun. But this week, Casey stepped out from the sidelines and outside of his area of comfort. Was this a predictable move of the writers?

What makes it seem as if this was a bolder move was how Adam Baldwin played the part. He did not seem like an automaton going through the motions. Instead, the pain he conveyed when choosing to walk away from his former fiancée and his unknown daughter felt real. Baldwins portrayal added more than just laughs or needed muscle this week, and it gave more credence to showing Chuck what could happen if he makes certain choices to be a spy.

What Didnt Work

Are we getting a little tired of the back and forth about Chuck becoming a spy and what that entails? The multiple connections about this point feel a little like a hammer on our head: the Laudanol kills Chucks emotions, making him almost a killer, Awesome chooses Ellies happiness over his own needs, which is something Chuck may not be able to do for Sarah, Caseys choice of dedication to job and loss of family could be what will happen to Chuck, and once again Sarah is back to having to make choices about the job or Chuck.

Chucks conflict over his choices does add substance to the show. However, maybe we only need to be hit over the head by one or two things instead of repeatedly during the entire show.

Giving Credit Where Credit Is Due

Chuck stars Zachary Levi, Yvonne Strahovski, Joshua Gomez, Ryan McPartlin, Vik Sahay, Scott Krinsky, Sarah Lancaster, Mark Christopher Lawrence, Bonita Friedericy, and Adam Baldwin. Chuck versus The Tic Tac was directed by Patrick Norris and written by Rafe Judkins & Lauren LeFranc

Chuck airs Mondays at 8 p.m. ET on NBC.