Transformers Prime: Season 4: Expansion

Transformers: Prime (known as Transformers: Prime - Beast Hunters during its third season) is an American computer-animated television series based on the Transformers toy franchise by Hasbro that aired on the Hub Network on November 29, 2010. The previous seasons focused on the Autobots of "Team Prime", consisting of Optimus Prime, Ratchet, Arcee, Bumblebee and Bulkhead, and their human allies as they attempt to protect the Earth from the villainous Decepticons and their leader Megatron.

Recap
Following the final episode of beast hunters, with Megatron's death, the autobots must now began a new path on cybertron following their planet's restoration, however their new life on cybertron leads to new threats.