The animated action of Transformers is back for season 2! Picking up right where we left our heroes after the events of "One Shall Rise," Unicron has been defeated... but Optimus Prime has lost his memory! But not to worry, Megatron has plans for his newest recruit... unless the Autobots can stop their nemesis and save their leader!

Reveals the origins of the conflict between Megatron and Optimus Prime, the reason for two allies fighting a corrupt regime to suddenly turn on each other, and the roles played by Starscream, Sentinel Prime, and Omega Supreme.

For twenty-five years the colossal battle between Megatron and Optimus Prime has captivated Transformers fans around the world. Yet the full story of the conflict between the two most famous Transformers—everything that happened before Optimus and Megatron arrived on planet Earth—has always been a mystery . . . until now. Here, for the first time told in its entirety, is the thrilling saga of Optimus and Megatron before they were enemies, before they even knew each other. “Freedom is every Cybertronian’s right!” After Megatron utters these immortal words, the caste-bound planet of Cybertron is rocked to its foundations. Megatron, an undefeated gladiator thug, gives voice to the unspoken longings of the oppressed masses—and opens the mind of an insignificant data clerk to possibilities previously unthinkable. Long before becoming the honorable Optimus Prime, Orion Pax is a mere office underling, an unlikely candidate to answer an outlaw’s call to revolution. But Orion is determined to meet this defiant enemy of all that Cybertron stands for, no matter what he has to do, or how many laws he has to break. What happens between Orion Pax and Megatron forever changes the destiny of all Transformers. This gripping, action-packed novel reveals all the loyalties and treacheries, trust and betrayals, deadly violence and shining ideals, as well as the pivotal roles played by other characters, including Starscream, Sentinel Prime, Omega Supreme, and one of the thirteen original Primes, the last link to Cybertron’s glorious Golden Age. Discover how meek disciple Orion Pax becomes the fearless leader Optimus Prime; follow the tantalizing clues about the lost Matrix of Leadership and the lore surrounding it; find out why the two allies fighting a corrupt regime suddenly turn on each other, and what triggers their epic war. Transformers: Exodus provides everything fans ever wanted to know about one of the fiercest rivalries of all time.

12 CHAPTER DIGITAL EXCLUSIVE SERIES! ORION PAX--Autobot hero and one-day OPTIMUS PRIME--stands side-by-side with MEGATRON, leader of the DECEPTICONS! But even together, will they be able to defeat ZETA PRIME and his forces?

12 CHAPTER DIGITAL EXCLUSIVE SERIES! Betrayed by MEGATRON, ORION PAX faces his future head-on! Will he rise to stop the onslaught of the DECEPTICONS...? And what will that mean for his fellow Autobots?

Optimus Prime has given up his title and is now Orion Pax, following the trail of the deadliest Decepticon of all-- Shockwave. And the Dinobots are back, led by Ironhide into the Cybertronian wilderness searching for lost Autobots, but what they find might be the greatest danger of all!

As scientists still struggle to understand the alien technology discovered on the far side of the moon during the 1969 moon mission, the Autobots and Decepticons contend to discover the secrets of the craft that might tilt the war in their favor.