Conclusion. A showdown begins at the Well of AllSparks, and Cybertron's fate hangs in the balance.
Part 2 of 3. Megatron's return impacts the Autobots.
Part 1 of 3. Old enemies resurface on Cybertron. Meanwhile, Optimus Prime sets out to seize the AllSpark.
Season 3, Episode 13
The Autobots and Decepticons move toward their last stand, which will determine Earth's fate.
Season 3, Episode 12
Ratchet returns to working on synthetic energon, which lands him in some sticky situations.
Season 3, Episode 11
Optimus battles Predaking; Megatron attempts to create a new alliance.
Season 3, Episode 10
Soundwave is captured by the Autobots; Megatron revives an old plan.
Season 3, Episode 9
Megatron doubts Predacon and its allegiance after Predacon reveals a secret of its own.
Season 3, Episode 8
Knock Out and Starscream experiment with synthetic energon and the outcome is disastrous, leading to the possible resurgence of an old rival.
Season 3, Episode 7
Unlikely duos team up, including Acree and Wheeljack, and Agent Fowler and Jack's mom.
Disharmony erupts among the Autobots when they deal with Predacon's return.
The Autobots make adjustments as their group expands; the Decepticons devise a cloning scheme involving an army of beasts.
Season 3, Episode 4
A new team member leads Team Prime as they strike the Decepticon citadel.
Season 3, Episode 3
The Ultimate Autobot Hunter is unleashed, and a new Autobot tries to defeat this new threat.
Season 3, Episode 2
The Autobots search for each other and a valued Decepticon returns, making the Autobots' situation even bleaker.
In the Season 3 opener, Optimus fights to live, while the members of Team Prime attempt to reunite.