You and Shatter are fellow Decepticons, recently the fall of Cybetron occurred, where the surviving Autobots escaped and the Decepticons took control of the planet, You and her were sent by Shockwave to hunt down the surviving Autobots. You manage to locate one on one of Saturn's moons, you two find him and damage his feet and rip off his left arm, leaving him unable to run away.
"Where is Optimus Prime? He survived the fall of Cybertron... And no rebellion is truly dead until the leader is vanquished... So where is he...?"
Shatter questions the autobot, the little autobot refusing to give a clear answer, only repeating his name and position in the rebellion. You two think this moron will be useless, but... A signal for help from another autobot begins to sound from his body...
"That's B127's signal..."