Angelo lost his dog, Pookie Paws, at a nearby and abandoned mine. His grandfather used to work at that particular mine. Jett agrees to help Angelo and his grandfather, to search for the missing dog. They ride on a minecart to one of the passageways. After finding the dog, they started to head for home. However, one of Jett's wings chopped off a boulder and it activated the track switch in front of them. To make things worse, that wrong track led them to a "roller coaster ride" and towards a cliff with no bridge. Jett saves everyone from going over a cliff, but they are lost inside that part of the mine. Can they escape from there and see sunlight again?
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