With the mighty Dreadtrux threatening to destroy the crater, Ty considers working with D-Structs to save both of their homes.

The Dinotrux investigate when all of the other trux in the crater start running away from a mysterious mountain that may be coming alive.

The Dinotrux return to the crater from their travels to find that D-Structs has taken over and built a huge wall to keep them out.

Ty has trouble keeping all of the new Trux organized and cooperative, and D-Structs comes up with a plan that throws the crater into even more chaos.

To escape big trouble, the Dinotrux quickly put together a raft and hit the sea. But there might be danger lurking in the water, too.

When the crew is forced to spend a night in the desert to avoid a sandstorm, they wake up the next day without their most important parts.