Ep 2. The Friend Who Wasn't There/Surprise!

Arthur season 18 episode 2, titled "The Friend Who Wasn't There/Surprise!", follows the story of Arthur and his friends as they navigate through some unexpected events. In the first part of the episode, "The Friend Who Wasn't There," Arthur and his friends learn that their classmate, Alberto, has moved away. They are surprised that they didn't know about it and wonder how it could have happened without anyone noticing. This leads them to reflect on their friendship and the importance of staying connected even when their friends are far away.

Meanwhile, in "Surprise!", Arthur's family is planning a surprise party for his mother's birthday. However, Arthur is having a hard time keeping the secret from his mother and constantly worries about ruining the surprise. In addition, his little sister, D.W., is convinced that the surprise is for her and becomes increasingly disappointed when she realizes it's not.

As the episode progresses, Arthur and his friends learn some valuable lessons about friendship and the importance of communication. They also see the joy and excitement that can come from surprises, especially when they're shared with loved ones. Overall, "The Friend Who Wasn't There/Surprise!" is a heartwarming and entertaining episode that highlights the joys and challenges of growing up.