Transformers Robots in Disguise: Volume 4

The Return! He's back ...and Cybertron will never be the same! Everything Bumblebee and his Autobots have built teeters on the edge of collapse - and Starscream has to make the choice his whole life has been leading to. And meet the new Prowl - deadlier than ever, colder then any other Autobot, and ready to end the Decepticon threat! This volume collects issues numbered 12-16 of the regular ongoing series.