The Epic Tales of Captain Underpants (2018)

S3E3 Captain Underpants and the Abysmal Altercation of the Abominable Altitooth

Desperate to find some peace from the rowdy campers, Principal Krupp sends them on a challenging trek up Plummet Peak, where whispers of a fearsome beast have circulated. The campers, intrigued and a bit frightened by the tales, set off on their adventure, unaware of the excitement and chaos that awaits them in the mountains.