Transformers: War Within Series by Simon Furman

Before Stormbringer, before the Beast Wars, before even Generation One, there was... The War Within. Four million years before the Transformers came to Earth, civil war rocks their home world of Cybertron, and Optimus Prime faces his first -- and greatest -- challenge. But before he can deal with the Decepticons, the new Autobot leader must look within... and decide if Cybertron is worth saving at all! If you think you know the Transformers.. moreBefore Stormbringer, before the Beast Wars, before even Generation One, there was... The War Within. Four million years before the Transformers came to Earth, civil war rocks their home world of Cybertron, and Optimus Prime faces his first -- and greatest -- challenge. But before he can deal with the Decepticons, the new Autobot leader must look within... and decide if Cybertron is worth saving at all! If you think you know the Transformers... think again! IDW is proud to present an all-new collection of this long-out-of-print tale from the Transformers' past. less

Cybertron... four million years before the Transformers came to Earth. As civil war rocks the Transformers' home world, Optimus Prime faces his first -- and greatest -- challenge. But before he can deal with the Decepticons, the new Autobot leader must look within... and decide if Cybertron is worth saving at all! IDW is proud to present an all-new collection of this long-out-of-print tale from the Transformers' past.