Mother's Day is approaching and Peppermint Patty is reminded that she was not brought up by a mother. Her friend Marcie shows Peppermint Patty that there are many types of families.

The Peanuts gang are anxious about starting at a new school in the fall, inspiring Lucy to start her own school instead, but teaching isn't as easy as it sounds.

Introvert Marcie is unexpectedly elected as class president; suddenly thrust into the spotlight, Marcie struggles to cope with the expectations of her new job and retreats from the public eye.