Optimus and a team of Autobots, along with the Autobots of the past, take a "Time Bridge" to Earth of the past, way before the Autobots saved the planet, and the rest of the Universe from the black hole: the Unicron Singularity, but this time, in the past; though Vector Prime of nearly the beginning of time and the past warns that the evacuation is only delaying the inevitable; the black hole will expand beyond Cybertron and eventually consume everything. He says he must recover the galactic map that was stolen from him by Megatron, and Optimus assigns Jetfire with both Hot Shot and Overhaul of the past to accompany him while he and Scattorshot of the past search Earth for the missing Landmine of the past.