In one shared Transformers universe, an ancient conflict between the Autobots and Decepticons threatens both Cybertron and Earth. Transformers Legacy (2026) follows Optimus Prime and the Autobots as they uncover a forgotten Cybertronian secret buried deep within their planet. Their search brings them into contact with the legendary Dinobots, ancient warriors whose history may hold the key to Cybertron's future. Meanwhile, Megatron seeks the same power to strengthen the Decepticons and reshape Cybertron under his rule.
In Transformers Legacy: Evolution (2027), the consequences of the first film spread across Cybertron and Earth. The Autobots and Dinobots discover technology capable of altering Cybertronian life. Their investigation leads them to the Maximals, Cybertronians who adapted to organic forms and have protected an ancient secret for generations. When Megatron attempts to seize this technology, Autobots, Dinobots, and Maximals are forced to overcome their differences and fight together.
In Transformers Legacy: United (2028), Megatron launches his greatest assault, threatening the survival of both worlds. Optimus realizes that victory cannot be achieved by the Autobots alone. Autobots, Dinobots, and Maximals unite for the final battle against the Decepticons. As Optimus and Megatron face each other one final time, Cybertron's future depends on whether its divided people can finally stand together.