Ep 1. Karate Kidder

Alvinnn!!! and the Chipmunks season 3 episode 1, titled "Karate Kidder," follows the adventures of Alvin and his brothers as they try to impress their new neighbor, Marco, who is a talented karate expert. The episode begins with the Chipmunks finishing their breakfast and receiving a call from their friend Cheesy, who informs them about the new neighbor and his martial arts skills.

Excited to meet Marco, Alvin and his brothers go next door to introduce themselves and ask him to teach them karate. However, Marco quickly discovers that the Chipmunks are not serious about learning karate and are only interested in impressing their friends. Disappointed, Marco decides to teach them a lesson by pretending to be a dangerous criminal and getting them involved in a fake "karate fight."

The Chipmunks are initially excited about the challenge and start preparing for the "fight." But as they begin to realize that the situation is not as it seems, they start to question their own motivations and the values of integrity and respect that Marco is trying to teach them. Eventually, the Chipmunks learn the importance of honesty and humility, and apologize to Marco for their behavior. In the end, Marco forgives them and agrees to teach them karate for real.

Throughout the episode, viewers are treated to catchy musical numbers and hilarious antics by Alvin and his brothers. The show's trademark humor and heartwarming themes make it a hit with audiences of all ages. "Karate Kidder" is a standout episode in the third season of Alvinnn!!! and the Chipmunks, showcasing the series' ability to combine fun and educational entertainment.