Jack, Raph and Miko, weren't the only ones to know of the Autobots existence, a fourth child had seen them as well. This follows the story about Alex. A 17 year old girl, with many problems, her life is changed completely when the Autobots comes into her life. But she isn't the only one who's world will change.
So Miko has Bulkhead. Jack has Arcee. Raphael has Bumblebee. But who has Alex? Read to find out.