Episode Title:
Origin.
Episode Description:
Red Alert survives the cave-in he was trapped in while he was dropping off the kids at the underground portal to Unicron. Above the ruined landscape, he can see Unicron battle against the combined forces of Autobots and Decepticons, and the giant Mini-Con duplicate of Unicron. Inside of Unicron, the kids explore, searching for Optimus and Galvatron. The two leaders stand in the same chamber of Unicron's core, where the three Mini-Con weapons are plugged into the behemoth. From the core of the monstrosity, Sideways emerges to welcome the two before exposing himself as Unicron. He then explains that he increased his power by leaching energy from the war between the Autobots and Decepticons that had lasted for so long. When Galvatron complains that Unicron has become long-winded, Unicron suspends the two leaders in black tentacles, absorbing Optimus's very essence. Unicron continues to question Optimus's own motives, suspecting that Optimus loves the smell of battle...
