S3 E1 • Porte stellaire 1/3

In the aftermath of the battle at the mine, Sari and her father’s relationship takes a strange turn; the Autobots have their work cut out for them trying to contact Cybertron; and Megatron and Starscream find a new opportunity.

Première diffusion : 14 mars 2009

S3 E2 • Porte stellaire 2/3

As Sari and Professor Sumdac deal with the fallout of the shocking discovery, the Autobots try to contact Cybertron to warn them of the traitor Longarm in their midst. Meanwhile, Megatron inadvertently stumbles upon a new plan to conquer Cybertron, where an increasingly desperate Longarm/Shockwave tries to cover his tracks.

Première diffusion : 14 mars 2009

S3 E3 • Porte stellaire 3/3

As Sari and Professor Sumdac deal with the fallout of the shocking discovery, the Autobots try to contact Cybertron to warn them of the traitor Longarm in their midst. Meanwhile, Megatron inadvertently stumbles upon a new plan to conquer Cybertron, where an increasingly desperate Longarm & Shockwave tries to cover his tracks.

Première diffusion : 14 mars 2009

S3 E4 • Le troisième Constructicon

Bulkhead and Isaac Sumdac try to rebuild the Space Bridge that Megatron had built. When Bulkhead convinces the Constructicons to help out, a combination of a forklift, a Headmaster unit and an Allspark fragment gives birth to Dirt Boss. Meanwhile, the others track down any remaining Decepticons and run into Lugnut.

Première diffusion : 21 mars 2009

S3 E5 • La revanche de Wasp

A crazed Wasp finds his way to Earth to exact his revenge on Bumblebee... but he doesn't count on the Elite Guard following him.

Première diffusion : 28 mars 2009

S3 E6 • Les 5 pièces du destin

Sentinel Prime has incredible success capturing fugitive Decepticons, leading Prowl to suspect he's getting help.

Première diffusion : 4 avril 2009

S3 E7 • Expérience techno-organique

The Autobots and the Elite Guard pursue Wasp for their own agenda. However, Blackarachnia has Swoop capture Wasp in her latest attempt to rid herself of her organic half. This experiment goes awry and turns Wasp into Waspinator.

Première diffusion : 11 avril 2009

S3 E8 • Erreur humaine 1/2

On Christmas Eve, Optimus Prime patrols the city in search of Soundwave. With Porter C. Powell selling Soundwave action figures, Optimus is paranoid that the real Soundwave is out there. When the Autobots drift off to sleep, they awake as full fledged humans. Now they must figure out what happened to them while dealing with a Decepticon onslaught.

Première diffusion : 18 avril 2009

S3 E9 • Erreur humaine 2/2

It turns out that Soundwave has trapped the Autobots in a virtual reality intending to brainwashing them to his way of thinking. Now, Sari must free them before Soundwave completely turns them into Decepticons. She ends up gaining unlikely allies in Snarl, Scrapper, and Wreck-Gar.

Première diffusion : 25 avril 2009

S3 E10 • Prise en Otage

The Space Bridge on Earth is finished. Meanwhile, the Elite Guard ship holding most of the Decepticon prisoners heads straight into an ominous space storm. The space storm reactivates Swindle who frees the Decepticon prisoners and takes over the ship. Optimus Prime identifies the "Broken Lance" code from Sentinel Prime and uses the Space Bridge to transwarp to the ship.

Première diffusion : 2 mai 2009

S3 E11 • Voila pourquoi je hais tant les machines

Ratchet activates Bulkhead's Space Bridge, which ends up sucking Captain Fanzone into it with Ratchet following him. They both end up on Cybertron around the time Sentinel Prime has declared a lockdown. Omega Supreme has arrived on Cybertron with Megatron, Starscream's head, and Lugnut. Thus, Shockwave (still possessing Ultra Magnus' hammer) attempts to get Omega Supreme's access codes from Arcee herself instead of Ratchet to reprogram Omega Supreme. In the end, Ratchet caught Ultra Magnus' hammer, Jazz joins Optimus Prime's team, and Arcee was shown to have her memory back.

Première diffusion : 9 mai 2009

S3 E12 • La bataille finale 1/2

The Autobots race to find an advantage over Megatron's control of Omega Supreme.

Première diffusion : 16 mai 2009

S3 E13 • La bataille finale 2/2

The Autobots fight to defend Detroit from Megatron and his clones of Omega Supreme.

Première diffusion : 23 mai 2009