Trampled Butterflies

When MECH tampers with the past in an attempt to gain an advantage over the future, the present is thrown wildly out of balance. The Autobots and the kids must find each other again before they are erased from existence entirely. Throw in some superstitious peasants, four warring tribes of Cybertronians, and a power-hungry magistrate, and you've got the makings of an adventure!