It's been a few years since Unicron almost destroyed Cybertron, and Optimus Prime sacrificed himself to save said planet. Things have been normal for the most part, but an infestation is on it's way....
What if bumblebee didn't grow up with the autobots what if he was taking from them (in this story Optimus and elita one had a sparkling (bumblebee) and you will find out)