Hilda Episode 5 - Chapter 5: The Troll Rock Episode Title:Chapter 5: The Troll Rock.Episode Description:Hilda tries to help David capture a baby troll running loose in the school during parent-teacher night. An adult troll then breaks into the school, and Hilda discovers that this troll is the baby troll's mother. She gives it back to its mother, thus saving the day. As the troll mother makes it way back to the wilderness, it destroys the school statue, much to the dismay of the school principal.