The Search for Alpha Trion

On Cybertron, three Female Autobots (Chromia, Moonracer and Firestar) sneak into Shockwave's headquarters under orders of Elita One. They raid Shockwave's stockpile of Energon cubes to power their fight against the Decepticons, but on the way out Moonracer accidentally trips an alarm. Shockwave, surprised to see Female Autobots still alive, sends a sentinel after them. The Female Autobots escape the sentinel and return to Elita One, though Shockwave deduces the approximate location of their underground headquarters. Shockwave contacts Megatron who sends Starscream, Astrotrain, Rumble and Ramjet to assist in the apprehension of the Female Autobots. Rumble starts an earthquake which damages the headquarters. Elita One attempts to lure them away from the base by attacking, but is captured. Rumble continues shaking things up until Starscream believes the base is suitably destroyed.

Megatron contacts Optimus Prime and shows him the imprisoned Elita One. Optimus rushes to her rescue, even though he knows it's a trap. Apparently, 4 million years ago, Optimus and Elita had a thing going. Right before boarding the Ark, Elita begged to go with him but Optimus told her it was too dangerous. As they spoke, the Decepticons attacked and Elita vanished in the chaos, leaving Optimus to think she had perished. Not wishing to lose her a second time, Optimus heads for Cybertron via the Decepticon spacebridge. Powerglide, Ironhide and Inferno become curious as to why Optimus is heading to Cybertron alone and follow in secret.

As soon as Optimus arrives he is taken prisoner by Starscream, who dangles him over a barrel of acid. Rumble drops Optimus, but before he lands in the barrel, Elita uses her special power which stops time. Elita rescues Prime, but at the cost of her own life force, as the special power uses up so much energy. Prime loads Elita into his cab and races to find Alpha Trion, the only Autobot who can save her.

Back at Shockwave's headquarters, the Decepticons believe Optimus has perished. Just then, the three Autobots arrive and attack. In the Female Autobots' underground headquarters, Moonracer comes up with a plan to dig their way out. They detonate the Energon cubes they had just stolen, freeing up their exit. Moonracer, Chromia and Firestar reunite with their boyfriends Powerglide, Ironhide and Inferno, and together they take on the Decepticons.

Optimus eventually finds Alpha Trion, who uses his skill to repair Elita One as best he can. In the end, Alpha Trion instructs Prime to interface with her for a power transfusion, as he is the only Autobot compatible with her design. Prime remarks that only his creator should know that. After the transfusion, Elita One recovers and the two then return to help the Autobots fight off the Decepticons. Outnumbered, the Decepticons retreat. Alpha Trion then sets the Female Autobots up with a new secret base and the Autobots bid farewell to their gal pals.