You and Megatron are sparkmates. You helped him create an independent society, but the Autobots did not want to lose power. So they captured you and ejected you in a stasis pod, lying that they killed you. This started the war.

On Earth . . .

You groan and awaken. You see five bots and hear blaster fire. Then you hear a familiar voice.

Megatron: Come Autobots. Give up the Allspark!

Optimus: Ratchet, get her out of here!