Agent Fowler asks for the Autobots' assistance in transporting a powerful nuclear device to a military base, but since sending such a device through the Ground Bridge could be potentially dangerous, they have to travel by road. Along the way, the Autobots are ambushed by M.E.C.H., a terrorist organization who wish to steal the nuclear device and use it for their own nefarious purposes. And to make things worse, the Decepticons get involved as well.
Debuts: Silas and M.E.C.H.