Forever Is a Long Time Coming
S3, E11: When the Quintessons embark on a time-traveling mission to change their history, several Autobots get trapped in the past, a leader of the robot revolt becomes stuck in the present.

S3, E11: When the Quintessons embark on a time-traveling mission to change their history, several Autobots get trapped in the past, a leader of the robot revolt becomes stuck in the present.