Transformers Prime: The return of the pretenders

Sequel to the series: 10 years after Predacons Rising. Bumblebee became the ruler of Iacon. He had lots of trouble to deal with the Cybertronian group named Pretender coming back and wants to live in Predaking territory. He must also deal with the new ruler of Kaon, Shockwave experience that threaten Cybertron and a mysterious cybertronian. If he fails, a civilian war coming back.