The earth ten years ago was the scene of a war between Autobots and Decepticons against their worst enemy: Unicron. During this war, Autobots as Decepticons lost many valiant combatants. The biggest loss was the death of Megatron. The latter died in Aurelie's arms. He had far too much damage caused by Unicron in his most deadly attack. A touching homage was returned to him by the Earth. Since that fatal day, Aurelie is no longer the same. Optimus, himself is affected by his death. They are often seen together in the city seeking to avoid their human friends or even the Autobots for the leader of these or the Decepticons for Aurélie.
Soundwave: Something would have to be done for them. But what ? Nothing can be done, they are unhappy and die out of sight.
Ironhide: Only a miracle could make him come back. "