The Quintessons plan to use a portal through time to prevent the Transformers' revolt against them. Several Autobots wind up getting sent back to the fight and a robot with an important future arrives in the present. And the Quintesson time portal begins to have disastrous effects on the universe.
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 .