Megatron discovers a large energon chasm, and dispatches Vehicons to the location. Soon Vehicons start to go missing. Drag Strip and the Battlechargers are sent into the chasm to investigate. However, they soon come across a legion of beastial Biotronians. Runamuck says that these "feralformers" must have been here for at least since 10,000 B.C. Drag Strip reports to Megatron about the discovery, who orders them to go deeper into the chasm. The 3 enter an abandoned Autobot city. Runabout suggests the fact of Autobot refugees fleeing throughout the universe, away from Cybertron. Drag Strip is not pleased by any of this and orders that they take out the source. After going a lot deeper into the chasm, and battling the feralformers, they come across a larger variety. They take it down and rep