Super Wings — Episode 13: Tricky Trolls

You are watching the episode Tricky Trolls Hilda from Norway has ordered a picnic basket for her school trip and invites Jett to come along. During the picnic, Jett scares Hilda with a troll mask. In shock, she drops the basket, which then moves as if by magic and disappears into a hole in the ground. Could there be trolls causing trouble here?