Ep 1. Biology 101

The season 3 premiere of Community sees the study group back at Greendale Community College for another semester. The episode, titled "Biology 101," opens with a musical number in which the group sings about how they're going to make this year different from the past two. However, things quickly take a turn when they realize that they're all taking the same biology class, taught by a stern and demanding new professor, Dr. Marshall Kane.

After the initial shock of discovering they'll all be in the same class, the group quickly splits off into pairs to work on their first lab assignment. Jeff and Troy work together, as do Abed and Annie, leaving Pierce and Shirley to team up. Britta, on the other hand, decides to work alone, feeling that she doesn't need anyone's help.

As they work on their assignment, Dr. Kane appears to be constantly watching and criticizing their every move. The stress of the situation starts to get to everyone, causing rifts to form within the group. Jeff and Troy get into a heated argument over their approach to the lab, while Pierce and Shirley begin to bicker over their past issues.

Meanwhile, Britta struggles to complete the assignment on her own, but finds a surprising ally in Chang, who is still working as a security guard at Greendale. The two strike up an unexpected friendship, bonding over their shared feelings of loneliness and isolation.

As the deadline for the lab approaches, the group's tensions reach a boiling point. Jeff and Troy's argument turns physical, while Pierce and Shirley's bickering spills over into their lab work. Meanwhile, Abed and Annie struggle to work together creatively, leading to a rift between them.

In the end, the group comes together to complete the assignment and impress Dr. Kane. However, they realize that they need to work on their communication and teamwork skills in order to make it through the semester. The episode ends with the group sitting down for a meal at the Greendale cafeteria, where they vow to stick together and make this the best year yet.

Overall, "Biology 101" is a strong season premiere that sets the tone for the rest of the season. The episode tackles the theme of teamwork and communication, while also introducing a new, intimidating teacher to challenge the group. Fans of the show will enjoy seeing the study group back together and dealing with new challenges.