Transformers: War for Cybertron Trilogy - Siege

Synopsis & Overview

Cybertron has been torn apart because of the civil war between the Autobots and Decepticons. In an attempt to end the conflict, Megatron considers using the Allspark as a last resort, but Optimus Prime wants to prevent that from happening, even if that means destroying Cybertron in order to save it. (Source: Wikipedia)