The evil Primacron plans to use an energy being named Tornadron to defeat the Transformers and help in his universal conquest. Meanwhile, the animal form Transformers leave during a battle between Autobots and Decepticons upon getting a strange signal. The signal was apparently sent by Primacron's own assistant, who believes this group of ""Primitives"" can defeat Primacron.
Elenco: Frank Welker , Peter Cullen , Jack Angel , Corey Burton , John Stephenson , Dan Gilvezan , Casey Kasem , Don Messick , Scatman Crothers , Brad Garrett , Aron Kincaid , Ed Gilbert , David Mendenhall , Hal Rayle , Jim Cummings , Neil Ross , Morgan Lofting , Peter Renaday , Regis Cordic , Victor Caroli , Michael Bell , Gregg Berger , Arthur Burghardt , Ken Sansom , Chris Latta , Clive Revill , Michael Horton .