Resumen:
The Quintessons build a device which focuses chronal energy in an
attempt to go back in time, stopping their robots from rebelling. A team of
Autobots end up in Cybertron's past, fighting against the Guardians, while a
timid robot from the past, A-3, is transported to the 21st century. The
time-travel mechanism eventually goes berserk, threatening the entire universe
as time begins to lose meaning. Eventually, A-3 is returned to the past, where
he deactivates the Guardian robots, and bids the Autobots to return home.
Later, an Autobot notes that A can stand for "Alpha" and 3 can stand for "Trion"...