About Me
Millions of years ago, the Quintessons turned the planet Cybertron into a giant factory for producing robots. One line, the military hardware robots, became the Decepticons. Unsatisfied with the situation that arose following their ousting of the Quintessons from Cybertron, they began a series of attacks that escalated into the Cybertronian Civil War.
At some point, the Decepticons found themselves in need of greater leadership and power, and created Megatron. Four million years ago, they were brought to Earth in the Ark, but the crash landing resulted in their deactivation. A volcanic eruption indirectly caused them to reawaken, at which point they left the Ark and set up a base of operations elsewhere.
Eventually, the Decepticons were able to communicate with Cybertron and set up an inter-dimensional link between the two planets known as the Spacebridge. Much of the Decepticon effort was put into collecting energon from Earth's resources and transporting them to Cybertron, where the Decepticons, led by Shockwave, had a stranglehold on the remaining Autobots. Despite this, the Autobots became a threat on Earth, and in 2005, Megatron ordered a full-scale attack on Autobot City. The Decepticons were eventually beaten back when reinforcements led by Optimus Prime turned the tide. Megatron, badly injured from the battle, could not prevent Starscream from ejecting him into space and thus overthrowing him. But before Starscream could be crowned, Megatron returned in the form of Galvatron and destroyed him. Though the Decepticons were supposed to help Unicron, they defended Cybertron en masse when he attacked it. They were badly outclassed, however, and relied on Rodimus Prime to defeat Unicron using the Autobot Matrix of Leadership. Presumably too weak and decimated to resist, the Decepticons allowed the Autobots to take Cybertron in the wake of the battle.
Although Rodimus declared this point to be the end of the Civil war, most historians believe he was being overconfident.
Galvatron, who had been lost during the battle with Unicron, later turned up in a pool of lava on the planet Thrull (possibly Thrall or Throb). Having had his mental functions damaged by the extreme temperatures, he still managed to gather the respect of enough Decepticons to take back leadership. After a year under his leadership, the Decepticons were no longer dangerously low on energy, but neither were they as powerful as they once were.
Some time after that, Galvatron masterminded a full-scale assault on the Earth-based Autobots. As it turned out, it was merely a distraction to allow several Decepticons to steal the key to Cybertron's plasma energy chamber. However, the key was lost to Cerebros after opening the chamber. An overload in the chamber caused a nearby Autobot shuttle (containing Cerebros) to go to the planet Nebulos. Determined to get the key back, the Decepticons followed them.
They attacked the Autobots, who had been captured by some Nebulans, but they only succeeded in capturing a few, and didn't even manage to get the key. Eventually, the free Autobots binary-bonded to a number of Nebulans, becoming Headmasters, and successfully rescued the Decepticon captives. The Decepticons followed suit (with a little convincing/blackmailing from the Nebulan Hive), but Cyclonus only allowed the animal-based Decepticons to share their heads. The rest of the Decepticons present became Targetmasters. The Decepticons counterattacked the Autobots and obtained the key. The Autobots, however, were able to steal Targetmaster technology from them during the battle when Brainstorm scanned Nightstick, Cyclonus's Targetmaster partner. In the meanwhile, Zarak, the leader of the Hive, worked on Scorponok, an underground city. Arcee eventually obtained the key back from Scourge during a subsequent battle, but then Scorponok suddenly emerged out from the ground, now with the ability to transform and be mobile, and captured Arcee, along with the key.
The victorious Decepticons flew back to Cybertron with the key. Galvatron was unhappy about the alliance, to say the least, but he realized its importance, at least for the time being, and allowed it to continue. Wanting to use the plasma energy chamber to power the giant engines he had built on Cybertron to move the planet, he again used the key, this time on time delay. Due to Autobot interference, the engines instead sucked excess energy from the sun to power Cybertron. Somehow, some of this energy hit the Decepticons (while in Scorponok), who were sent flying out of control into space.
