Transformers Skyfall I: Rising Sun

Almost a decade ago the Allspark was found on Earth. In a bloody battle for its power, many were killed. Among them was Decepticon Second in Command, High Lady Nightress.
Since her death, Megatron has done nothing but consume himself with a paranoid rage directed at Optimus Prime. He seeks to destroy the Autobots for what they did and utilises a new weaponised form of war fare.

As for the Autobots, their leader's faith continues to wane as the war prolongs. His spark has given up the fight and he fears that there are only dark times ahead. If Optimus cannot be there to save his Autobots from certain death, how will he ever be able to save them from themselves?

And finally, former Air Commander Starscream has returned from a seven year long, self-exile after he failed to save the Allspark. His return brings doubt to Megatron's cause and a slow halting of the war.

As the future grows narrow and dim, it's clear that both sides are ready to give up. The only thing they have left of Cybertron is themselves. Until a new hope is brought to light in the creation of "EarthSpark" Transformers. Filled with the final strength of his last hope, Optimus plans to preserve what he can and lead the next generation into a peaceful future, while Megatron seeks to corrupt it.