Megatron Rising, Part 2

With his new body, Megatron successfully defeats Optimus, Prowl, and Bulkhead, and kills Starscream as punishment for betraying him. After tricking Blackarachnia, Sari joins up with Ratchet and they pick up Prof. Sumdac and the other Autobots at Sumdac Tower, with Megatron, Lugnut, and Blitzwing in hot pursuit. Crashing on Dinobot Island, the factions battle each other, and Optimus disperses the Allspark using Sari's key, seemingly killing Megatron. With the AllSpark out of commission, Sari's key becomes the most powerful Cybertronian artifact in existence. Megatron survives, with Prof. Sumdac as his prisoner.