It's been 10 years since Megatron disappeared and the Autobots and Decepticons now work side by side with humans to harvest Energon. But the Autobots face a new threat: attacks by Transformers known as Terrorcons.

It's been 10 years since Megatron disappeared and the Autobots and Decepticons now work side by side with humans to harvest Energon. But the Autobots face a new threat: attacks by Transformers known as Terrorcons.

After analyzing the Terrorcon threat, the Autobots decide to send away all the civilians living in the energon mining bases.

Scorponok captures Tidal Wave and makes him follow his orders so that they can revive Megatron with energon.

Super Optimus Prime emerges to find his team searching for energon.

Megatron is alive again and forces Scorponok to serve him, but Scorponok is loyal to only one master Alpha Q.