Ben & Holly's Little Kingdom (2009)

S2E39 The Journey to the Centre of the Earth

Mischievous Daisy and Poppy use magic to transport their teacher, Mrs. Fotheringill, to the Earth's core. In a thrilling adventure, Ben and Holly, guided by Granpapa Thistle, navigate through a world filled with dinosaurs and volcanoes as they embark on a quest to bring her back.