Transformers Prime: Beast Hunters - Predacons Rising

Not long after Megatron's demise and the restoration of Cybertron, the Autobots celebrate. Optimus Prime knights Bumblebee as a warrior, marking the start of a renewed era for the Autobots. The moment signals a fragile peace and renewed purpose on Cybertron.

Optimus Prime and Wheeljack set out to locate the AllSpark, the source of Cybertronian life. The rest of the Autobots pursue the missing Decepticons Shockwave and Starscream, splitting the team across dangerous fronts. The mission establishes the central hunt that drives the plot forward.

Deep beneath the Pacific Ocean, Megatron is revived and possessed by Unicron, turning him into a vessel of destruction. This revival shifts the danger from pursuit to annihilation, as Cybertron faces a renewed existential threat. The ocean bed becomes the catalyst for catastrophe to come.

Bumblebee, Smokescreen, Bulkhead, and Arcee search for Shockwave and Starscream while Ultra Magnus and Smokescreen are attacked by Skylynx and Darksteel. Ratchet returns to Cybertron to tend to the critically wounded Magnus, leaving the team temporarily short-handed. The skirmishes reveal the growing volatility of the battlefield.

Bumblebee's team tracks down Predaking in an attempt to recruit new Predacons, but Predaking refuses to help them. The encounter underscores the fractured loyalties among the Transformers' factions. The Autobots must forge ahead with dwindling allies.

On Knock Out's suggestion, the Autobots head to Megatron's old fortress in Kaon. They are confronted by Unicron and are forced to escape, narrowly avoiding capture or annihilation. The fortress raid cements Unicron as the looming, omnipresent threat.

In the Theta Scorpii asteroid belt, Optimus Prime and Wheeljack locate the AllSpark's container and retrieve it. They begin their return to Cybertron, while Bumblebee assumes temporary leadership due to Ultra Magnus's injuries and compromised comms. A fragile coalition forms around the AllSpark's fate.

Predaking begins searching for Skylynx and Darksteel, but finds Unicron instead, whom he defeats easily. This confrontation shows Unicron's vulnerability but is only a precursor to the darker events that follow. The stage is set for a larger, more terrifying menace.

Unicron overpowers Skylynx and Darksteel and resurrects ancient corpses into undead Terrorcons. Starscream flees, Shockwave is injured, and the undead horde moves toward the Well of All Sparks. The autocracy of fear spreads as the threat grows closer to Cybertron.

Starscream sneaks aboard the Nemesis to free Knock Out and captive Vehicon troops. Knock Out defects and incapacitates Starscream, foiling his plan to regain command. The power dynamics within the Decepticons shift once more.

Predaking's clashes with Skylynx and Darksteel are interrupted by a wounded Shockwave, who suggests that they assist the Autobots. The suggestion sparks a potential realignment among Predacons and their allies. The battlefield politics grow increasingly complex.

The undead Terrorcons are confronted by the Nemesis and the Predacons at the Well of All Sparks; the ship is shot down and Starscream uses the distraction to escape. The clash near the Well marks a climactic clash between the living and the dead. The Well remains a focal point for the war's outcome.

Optimus and Wheeljack return to fight, but Unicron shoots down Wheeljack's ship and defeats Optimus, seemingly claiming the AllSpark. The Anti-Spark is pulled into the empty container, sealing it away forever, and the Terrorcons disintegrate as Megatron is freed. A new balance of power forms in the aftermath.

Megatron, having regained a sense of purpose, disbands the Decepticons and flies off to start a new life. His act reshapes the faction's future and creates a power vacuum on Cybertron. The remaining Decepticons drift into uncertain leadership.

Optimus reveals that he emptied the AllSpark into the Matrix of Leadership within him and must sacrifice himself to restore life to Cybertron. Despite the Autobots' pleas, he plunges into the planet's core, triggering a surge of sparks from the Well. His sacrifice signals a new beginning for Cybertron and its inhabitants.