The Autobots go to the Earth's core to fight for the planet; and Jack uncovers info about Optimus' background.
Released: 2011-10-15
Runtime: 50 minutes
Genre:
Stars: Peter Cullen, Jeffrey Combs, Frank Welker, Tania Gunadi, Josh Keaton, Kevin Michael Richardson, Ernie Hudson, Andy Pessoa, Sumalee Montano, Steve Blum, Daran Norris