Thinking Unicron is defeated, Galvatron and Optimus Prime resume their battle.
The purpose and meaning behind the endless war is revealed.
The only way to defeat Unicron is to wake the minicons inside him and attack from within as well as without.
As Unicron begins to awaken, Optimus and Galvatron decide to forgo their battle.
Starscream prepares to do whatever it takes to convince Galvatron the threat of Unicron is real.
Thrust joins Sideways by passing through a portal underground.
Thrust flees into the depths of Cybertron, pursued by Hot Shot and Wheeljack - and, separately, Starscream.
While the battle continues, Hot Shot goes to Cybertron to try to convince Galvatron of the impending danger.
The 'Bots reach Cybertron to find Megatron (now calling himself Galvatron) already winning the war.
Hot Shot and Red Alert are sucked through a wormhole.
While the Axalon chases the Decepticon ship, hundreds of minicons appear.
With the Autobot ship ready to leave, Hot Shot refuses to let the children accompany them.
Hot Shot insists they should take vengeance on the Decepticons.
Optimus and Jetfire attack the ship, but can't stop the Hydra Cannon being deployed.
Sabre, Shield and Blaster together create the Hydra Cannon.
Starscream trusts Thrust and returns to the moon base.
Alexis tracks a minicon in the vicinity of Mars.
With Starscream's help, the Autobots infiltrate the Decepticon moon base.
Hearing Megatron say he is nothing more than disposable cannon fodder, Starscream defects with the Star Sabre.
Megatron sacrifices Starscream, leaving him to face the Autobots alone.
Desperate to make amends to his old friend, Hot Shot allows Wheeljack to shoot him, but this isn't enough.
Enthusiastic young Sideswipe joins the team and Optimus tasks Hot Shot with training him.
The minicons want to be in charge of their own destinies, so the kids sneak the new team out of the base.
The kids try to gather the three Requiem Blaster minicons together.
The massive Tidalwave joins the Decepticons, but is, seemingly, defeated in battle by Hot Shot and Blurr.
On the moon, Thrust continues his plotting with Megatron.
With Optimus damaged and temporarily out of commission, the newly-arrived Jetfire takes command.
A new transformer enters the solar system.
Trapped with Sideways, Alexis, Rad, Carlos and their minicons become aware of a massive evil entity.
Starscream challenges Megatron for control of the Decepitcons.
Megatron uses the Minicons to lure the Autobots into a trap.
Megatron plots to destroy the Autobots once and for all.
Autobot Blurr joins the team, but proves himself not much of a team player.
A weekend's camping trip to the valley below the dam goes wrong when a violent storm moves in.
Autobots and Decepticons face off amongst snowy mountains in the battle for the latest minicon.
Decepticons mutiny while searching for MiniCons in a jungle.
Grabbing onto Megatron at the end of a battle, Hot Shot and Sideways are transported to the moon.
A new minicon activates inside a highway tunnel.
Hot Shot proves himself very skilled with the Star Sabre.
The Decepticons gain access to the Autobot base and attempt to take the other two minicons.
The children learn more about the history of the minicons and the war.
From an ancient submerged city a beautiful girl issues a warning about the devastating power.
The latest minicon re-activates in the subway system of a large city.
The Decepticons capture all the children to use as hostages in exchange for the Autobots's minicons.
In an ancient palace deep beneath the Sahara another minicon is waking. Who will reach it first?
Rad and Carlos smuggle their minicons out of the base to visit the town's carnival.
The newest minicon activates in the middle of a forest: both sides fight for it.
Autobots discover a MiniCon at the South Pole.
The children join the Autobot team and head out on their first mission to find a newly waking minicon.
Alexis, Rad and Carlos introduce themselves to Optimus Prime, Hot Rod and First Aid.
Alex, Rad and Carlos find the cargo hold of the Exodus underground and are adopted by three minicons.
Children unwittingly reopen an ancient battle between Autobots and Decepticons.
