The Hoover Dam was built by Herbert C. Hoover, the 31st president of the United States. It has played a great role in flood control, irrigation, urban and industrial water supply, water conservancy and power generation, shipping and so on. Of course, this is the information on the surface, but in the dark it is a secret base. For research and protection, a treasure from the universe.


    In the long history of Cybertron, the existence of fire source has always been the treasure of the planet. It is an energy body with huge energy. But during the long civil war in Cybertron, the fire source was lost. It fell on the Colorado River and was discovered by seven explorers in 1913. President Hoover built the Hoover Dam around the fire source to protect it and the nbe-1 (Megatron) found in the Arctic. For the protection and research of fire source!


    Now, with the arrival of the powerful intelligent mechanical life race in the universe, they also gradually find the location of the fire source, and approach the location of the fire source - Hoover dam!


    "You''ve all been in direct contact with NBE."


    “NBE？”


    "Abiotic aliens." And he said, "remember, what you see next is highly confidential!"


    "My God, what is this!"


    In front of everyone''s eyes is a huge robot, he is frozen, and the refrigeration equipment is running all the time, keeping his frozen state.


    "We think the gravity of the earth disturbed his navigation system as he flew over the North Pole. He fell into the ice, probably thousands of years ago. We brought him here in 1934, and we call him nbe-1. "


    Sam, who came with him, said, "I''m sorry, sir, I don''t want to correct you, but I want to say that it''s not nbe-1, it''s Megatron, the leader of Decepticons!"


    "He''s been frozen since 1935, and your great grandfather made the biggest discovery in human history. In fact, what you see... Is the source of modernization. Microchips, lasers, space flight, cars... Are all acquired by reverse engineering. Nbe-1 is what we call it. " He walked beside Sam, accentuating the naming rights of the emphatic.


    ……


    "Then why did he come to earth?"


    "Because of the fire source!" Sam said.


    People around don''t understand, "fire source?"


    "It''s a cube like thing. Nbe-1 is Mr. Megatron, as they call him. He''s the messenger of death. He wants to use the energy body to transform human technology and then rule the universe. That''s their goal." Sam popularized Megatron''s origins and sources of ignition to the public. "You know where that thing is, don''t you?"


    "Come with me!" The person in charge said, "what you will see is the ultimate treasure!" They followed him to another room, and then they saw a huge cube half suspended in the air. Around the cube, there are artificial metal trestles and engineering equipment. Many engineers and researchers are studying this huge metal cube.


    "The carbon-14 dating estimated that the energy body came to the earth in 10000 BC. The seven elders only discovered it in 1913. They knew it was an alien object because... The branding on its surface was very similar to that on nbe-1. So President Hoover built a dam to hide it in it. It was four football fields thick of cement, No one, or any alien race outside, can detect the energy he emits. "


    At the moment when everyone was shocked by the fire source, as a small Spy Robot, he also saw the fire source hidden by the heavy dam, so he sent out the message of finding the fire source.


    Then, this group of information was instantly learned by Decepticons disguised on the earth. The F-22 Raptor in the disguise of Starscream, the police car in the disguise of roadblock, the tank in the disguise of noise... At this moment, they rush to the location of the fire source with the fastest speed.


    At this time, in the outside world, there is also a shadow of evil spirits. It''s an unusual scene to notice the police car disguised as a roadblock! He quietly turned into a black fog and hid at the bottom of the police car disguised as a roadblock.


    ……


    "You say the dam hides its energy. What energy?"


    "Good question!"


    Then, people see the power of the fire source again. A small mobile phone receives the power of the fire source and becomes a ferocious small robot.


    Outside the dam, a fleet of Decepticons is also coming. However, their speed has never been as fast as the Starscream disguised as the F-22 fighter. He was the first to reach the Hoover Dam, and then the attack! Attack the power supply equipment, and confused also took the opportunity to come to the control room, shut down the freezing Megatron refrigeration device, and raise its surface temperature, so that the freezing Megatron ice began to melt, and then wake up Megatron.


    At the moment of Decepticon operation, the Autobots led by Optimus Prime also rushed to the scene.


    Then, the released Bumblebee turned off the huge fire source into a small cube, and with the failure of the power supply system and the moment Megatron was about to wake up, led the fire source to withdraw.


    Megatron, however, began to wreak havoc, tearing down all the things in front of him, and then transforming into a fighter plane to fly to the outside world. The Bumblebee with the fire provenance also quickly converged with the Autobot team, but the Decepticons also followed closely behind the Autobot. The attack was the first to take action. He changed his shape. He was huge. In his eyes, a human car was a toy. When he raised his hand and stopped, it was easy to tear up a car on the highway. The arrival of the attack, Optimus Prime quickly change posture to stop the attack. However, the black fog hidden under the road block also floated out quickly, and in the process of flying, it turned into a bloody fog, which attracted all people''s eyes.


    The blood fog was flying so fast that it left the Decepticons and Autobots behind and quickly approached the bumblebee.


    "The other party''s purpose is also the source of fire!" Although Optimus Prime doesn''t understand what the blood fog is, it''s not difficult to guess his purpose by watching the blood fog quickly approaching the bumblebee.


    In the sound of his warning, the Autobots bombarded the blood fog in the air one after another, but they didn''t touch any entity at all. The fire went straight through the blood fog and detonated in the air.


    The blood fog didn''t pay attention to the gunfire at all. It suddenly dispersed in front of the Bumblebee at the moment of approaching. And the Bumblebee just bumped into it. However, it was as if he had entered the liquid glue and couldn''t move! Sam, hiding in the car, screamed and didn''t know what had happened.


    Then, under the gaze of a group of alien life, the blood fog turned into a evil figure. The long black hair is neatly combed, dressed as a medieval aristocrat, with a slightly open and closed mouth and sharp teeth.


    "Give me the fire, little one!"