In 1961, humans detected traces of aliens on the moon, so President John F. Kennedy ordered to land on the moon before the Soviets at all costs. In 1969, President Nixon ordered secret attention to the aliens' whereabouts during the Apollo landing on the moon. They discovered the Autobot spacecraft "Ark" that the Autobots wanted to escape during the final battle of Cybertron, and the huge robot "Guardian Enemy".
Sam Witwickyafter graduating from college and a new girlfriend, Carlylives in Washington, he saved the world twice, so little can not meet the ordinary Human life, but he still got a job, trying to settle down. Carly doesn’t understand Sam’s distress. She works for Dylan Gould, an art and car collector .
According to the intelligence of the Soviets, the people on Earth encountered a "shock wave" of decepticons at the original site of the Chernobyl nuclear power plant. Optimus Primerepelled the shock wave, but was surprised to find the core engine part of the Ark left by the shock wave. Optimus Prime was very angry that humans concealed the truth from him. It turned out that American astronauts discovered the crashed Transformers Autobot "Ark" when they landed on the moon many years ago, but they kept hiding it from the world and the Autobots.
Optimus Prime asked for a trip to the moon. On the moon, Optimus Prime and his team found the "Guardian Enemy". He was the former leader of Autobots and Optimus Prime's mentor. The Autobots brought the guard against the natural enemy and the five pillars around him back to the earth. As a result, they all fell into the trap. Sam was recognized by the company as a friend of Transformers. This person tried to tell him of the Decepticon plot. Obviously he was also forced to participate in the plan, and then the laser bird killed the person.
After bringing the Imperial Natural Enemy and the five pillars back to Earth, Optimus Prime used the energy treasure to restart the Imperial Natural Enemy, and then put it back into his body. The answer was revealed bit by bit, and Sam immediately realized that the Decepticons had always known about the "space bridge". Sure enough, the natural enemy rebelled, and he killed Ironhide and the twin robots.
Seeing the betrayal of the natural enemy who was once an Autobot, mankind gave up and spread grievances on the Autobot. Sam went to Optimus Prime and the Autobots and asked them what their plans were. Optimus Prime said that they had no plans and would leave silently. They just left, the spaceship was shot down by Starscream in mid-air, and the Autobots seemed to have been wiped out.
Sam had to ask Robert Epps, a former military officer who was transferred to work at the base , for help, begging him to help him track Dylan and rescue Carly who was caught by the bad guys. After some follow-up, they found that Dylan was in Chicago, so Sam, Epps and the latter's military comrades went to Chicago together. The Decepticons and natural enemies began to implement their own plans. In order to turn Chicago into a base for transmitting the planet Cybertron, the Decepticons demolished almost half of Chicago. When humans were helpless, the Autobots came back without a surprise.
Optimus Prime began a heads-up match with the Imperial Enemy, but Optimus Prime’s left sword and right axe could not break through the defense of the Imperial Enemy, and his right arm was interrupted. In a critical moment, Carly ran to the rust-covered Megatron and separated Megatron from the predator, causing it to furiously ignore the rust and rush out to attack the predator. And triumphantly said to Optimus Prime that if it were not there, Optimus Prime would have no value in existence. Optimus Prime's face sank, "We'llsee", and with one arm he hacked to death Megatron, who had already run out of oil.
The dying natural enemy said that it was just for the hometown and did not want the Autobots to become the slaves of the earthlings. I hope Optimus Prime can understand that it is pursuing freedom. Please Optimus Prime forgive his betrayal. Optimus Prime said, you didn't betray me, you just betrayed yourself. Two shots ended the life of the natural enemy.
