It has been 10 years since the fateful battle with Unicron. Many of the Decepticons who fought in the battle against Unicron have joined forces with the Autobos to mine for Energon, an alternate energy source. But a new source of evil has a risen, Alpha Q who plans to steal the Energon from the Autobots with the help of Scorponok and the Terrorcons. This new evil is trying to revive Megatron and Unicron in order to rekindle the old flames of war. 
(Source: Anime News Network)

On the mechanical planet of Cybertron live super robotic organisms known as Transformers. There, mainly consisting of convoys, the Cybertron army, and their old enemy Destron fell into conflict to gain hold of a new power to join their side. A new breed of Transformers known as the Microns. But, grieving over the battle the Microns set off to the other end of the universe. 4 million years later, on Earth, 3 young children activated a mysterious panel inside a cave. And somehow, that was the dormant Micron...

Episode 43.5, "Distribution", is a comedic special show which commemorates 500 episodes of Transformers in Japan (however, since that total includes assorted Japanese series, the west is still some distance away from this number). When aired in Japan, it did not air in the usual timeslot for Superlink, and is not in any sort of chronological order - It features the Autobots playing a video game training simulator, which they certainly do not have time to do between episodes 42 and 44. 
(Source: Wikipedia)

At an unknown point during the events of Superlink, Grand Convoy comes into contact with Grand Scourge - a mysterious evil entity who strongly resembles him.

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