The trials of Optimus Prime

"On Earth, Bumblebee and his team of Autobots--Sideswipe, Strongarm, Grimlock, and Fixit--battle some of Cybertron's most dangerous Decepticons. In the Realm of the Primes, Optimus Prime is training for an important mission. Little do the two friends know, they are both being tested by Liege Maximo, who will stop at nothing to make sure Optimus and Bumblebee destroy each other"--