Transformers Prime Beast Hunters: Predacons Rising (2013) on Netflix

Plot summary

Cybertron is restored and the Autobots celebrate their victory on Earth. Optimus Prime knights Bumblebee a warrior, then leaves with Wheeljack to recover the AllSpark, from which new Cybertronian life springs, while the others hunt the missing Decepticons Shockwave and Starscream. On the ocean floor, Megatron's body is revived and possessed by Unicron, who means to destroy Cybertron. During that hunt, the Predacon creations Skylynx and Darksteel attack Ultra Magnus and Smokescreen, and Ratchet flies back to Cybertron to treat Magnus. Bumblebee leads a team that seeks Predaking's help in finding the new Predacons, but he refuses them; at the imprisoned Knock Out's prompting, they set out for Megatron's old fortress in Kaon.