Introduction 1: Five years after the Decepticons invaded Chicago, the Autobots got a health permit. Fearful of being regarded as a threat by human beings, they were secretly pursued by the "graveyard wind" of the CIA elite force with the help of the bounty hunter named Lock. Since the ambush, Optimus Prime has lost confidence in human beings. Cade, the mechanic, helped him recover and persuaded him to reconsider his belief in human beings. Cade and his family joined the ranks of Autobots, fighting the graveyard wind, Locking and Galvatron (the reincarnation of Megatron).

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Introduction 2: Five years after the Decepticons invaded Chicago, humans began to fear Transformers. Although the autobots were officially granted refuge, they were secretly pursued by the cemetery wind, the elite black ops unit of the CIA, with the help of a bounty hunter named Lockdown. They ambushed and brutally killed most autobots, and their main target, Optimus Prime, was still hiding somewhere after being seriously injured in the ambush.

Cade yeager, a struggling inventor and "robot expert", bought an old truck and tried to save some money. After inspection, he found that the truck was the injured Optimus Prime, and repaired him after accidentally bringing him back to life.

After finding Optimus Prime, the graveyard wind and confinement went to Texas to fight Cade. Optimus Prime came out of his hiding place to help Cade and his friends escape. Kaidehei got into a drone he took away from the attack, and he found scenes of ambush and ratchet and the death of Leadfoot, who were also Optimus Prime's companions. Then, he learned that Graveyard Wind Company was cooperating with a robot company named Power Solutions Company d (KSI). Together with Optimus Prime's companion Autobots, they decided to sneak into KSI headquarters to get information.

It turned out that KSI captured and imprisoned Bu Lei Ensi, a Transformers who survived the Chicago Battle. They used their brains to decode the dead transformers and used the data to make artificial transformers. Using data collected from Megatron's remains, they created Galvatron as their next generation of Transformers. It turns out that Galvatron is the incarnation of Megatron, and he has been manipulating KSI to create more Decepticons to destroy mankind. He himself activated and infected all KSI Transformers prototypes and began to destroy mankind. After a series of battles, Galvatron, the only survivor, retreated. He vowed to come another day.

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