Beast Wars: Transformers S01E12 - Victory

Terrorsaur leads a rebellion against Megatron, and the ensuing fight accidentally blows up the Darksyde when an Energon sample is hit. Thinking they have won the Beast Wars, the Maximals decide to salvage parts from the Predacon ship and go back to Cybertron. But the destruction of the Predacons turns out to be an elaborate ruse planned by the Predacons themselves.