An embarrassing rumor about Lucy spreads at school and she thinks Bruce is behind it so Heidi gets involved and uses some magic to bring the trio of friends back together.
Second-grade witch Heidi Heckelbeck wants revenge against Melanie, the meanest girl in school, so she decides to cast a forgetting spell on her right before the start of the school play.
Unlike her brother Henry who is excited to be the ring bearer in Aunt Sophie's wedding, Heidi is not looking forward to walking down the aisle in a fancy flower girl dress, but when Henry loses the ring, Heidi must stir up a spell to create a new one before the big day.
Witch Heidi is angry when mean Melanie Maplethorpe dresses as a witch for Halloween, but when she decides to retaliate, she almost loses all her friends.
Heidi and her best friends take a road trip with her best friend Lucy Lancaster to the Wacky Wonders Adventure Park where there are water slides, wild rides, and plenty of friendship drama between Heidi and Lucy.
Everything Heidi tries to do for Spirit Week at school seems to be wrong, at least according to her nemesis, Melanie, until a spell helps her find her superpower on Super Hero Thursday.
When Heidi and her family take a trip to Castle Spell Cove, she befriends an unusual girl named Sunny who has a magical secret that will change Heidi's life forever.