Near the end of the episode, Unicron created one big manifestation of himself to fight Optimus Prime. Optimus blasted the big one but dozens of manifestations showed up and surrounded Optimus.
Optimus destroyed several of the manifestations, but they were able to overpower him. However, Team Prime showed up and aided Optimus in battle. They blasted manifestations and tried to escape them, but they faced a gigantic manifestation. This one was hard for the team to destroy and it easily overpowered them. It was close to killing Optimus until Megatron saved Optimus by blasting the manifestation. Megatron fought the other big manifestations while the team retreats back to base.