Back on saibertron when the primes were built and of corse the deceopticons to there was a wise council that decided there should be a force to turn on the decepticons to make them weak so they would not be able to evil. They created a machine powered by the allspark that could see the future and one of the council said "Ive sean the future and there will be a planet called earth and the decepticons will try to get the allspark" so they sent teh nonespark there to help the autobots in the future but this nowledge was lost with time.
So then the decepticons found it and were ready to attack earth and now nobody could stop them!! But then beacuse of thier pride they were not careful to check for surveylance and there was a tiny robot spy that saw them from the autobots! Optimus prime quickly got the other autobots together with him and together they went to the place that wasnt a secret anymore.
"Maby you think you can stop us optimus?" Megatron said but you don't have the allspark and we have the nonespark, it is hopeless to fight us! and optimus said "I beleive in the humans who dodint do anything to be a part of this war of us and you have to stop this before it destroys you to!" and Megatron said "your finished!" and he activated the nonespark.
But what he dident realize is that the nonespark was made only to stop the future from hapepning like they saw in the future in the past with the machine, so it was only to stop the decepticons. When the megatron activated the nonespark it defeated the decepticons and trapped them in a energy prison and started to fly off into deep space forever, and megatron said "NOOOOOO!!!" and optimus prime said "I said this engar and hate would be your downfall but now its to late your going to be sent off into space forever. We must learn to live in peace together we these humans in our new home but you cant because you made your decision.
Basicly the autobots did not have to do anything you might say but actually they had to have the courage to stand up to the decepticons so the nonespark would be used. And also they had to have the strength of spirit to not be evil like the megatrons so that they would protect the earth.
THE END