optimus prime

"Captured by Dr. Meridian along with Dot Malto, Megatron must decide whether to stay loyal to Optimus Prime and help save Robby and Mo's mom or go back to his old ways and team up with Meridian"--OCLC.

"A big auto race is happening nearby, and G.H.O.S.T. has a top-secret mission for Optimus Prime and Megatron: make sure there are no rogue Transformers robots competing in their alt modes. At first, Optimus Prime and Megatron figure this will be an easy mission... until they arrive and discover Bumblebee, the Terrans, Robby, and Mo all at the racetrack. If G.H.O.S.T. finds out about Bumblebee and the Terrans, everyone's cover will be blown! Can Optimus Prime and Megatron work together to save the day and keep everyone's secret safe?"--Provided by publisher.

"Now that the Transformers War is over, Optimus Prime's role as leader of the bots looks a little different than before. Follow along as he works with Dot Malto and G.H.O.S.T. and sets an example for Terrans and Transformers bots alike!"--Provided by publisher.