Megatron brainwashes Ironhide, who becomes his well-placed, highly intelligent, subliminal spy.
The Decepticons rescue Nightbird from the Autobots, but she gets decapitated. Megatron gives her the head of Abraham Lincoln, creating Abebird. (Return of the Nightbird)
The Abebird from a few months in the future warns his past self about the alteration of the future timeline when Unicron fails to make Megatron his herald. The near-future Abebird delivers present Abebird to the future to fix the timeline, and then returns to the near-future. (The Rubber Bung)
Ironhide, under the control of Megatron, kills many of the Autobots. They are brought back to life by Primus. (Autobot Secret Files & Origins)
The Quintessons try something sinister, but are thwarted by Blaster, Raul, and the gang. (Blaster's Big Blowout)
Abebird returns from the future after fixing the timeline.
Abebird goes missing, and Megatron thinks she's left him. He cheats on her with a femme-bot named Roadkill. Abebird returns dressed in Hawaiian clothes. (All the Wrong Places)
Megatron marries Abebird, Optimus Prime marries Elita-1, Spike marries Carly, and some other guys get married too. (Four Weddings and a Funeral)
Soundwave builds Abebird a walking apparatus, since he lost his legs in the future. (Two Heads Are Better Than One)
Megatron and Ratchet are temporarily fused together. (Two Heads Are Better Than One)
Abebird disappears to his tropical island again. (Two Heads Are Better Than One)
Abebird's walking apparatus is destroyed. (Two Heads Are Better Than One)
Ironhide practices the fine art of monkey tossing. (The Tale of the Hippie Glasses)
The Decepticons build a time machine to travel back in time a few days and stop Megatron from buying a pair of hippie glasses. (The Tale of the Hippie Glasses)
On the way back from the past, one of Swindle's White Castle Holes (TM) disrupts the timestream, bringing the Transformers in contact with Green Lantern. Abebird ends up with GL's finger attached to his forehead and a spiffy pair of hippie glasses. (The Tale of the Hippie Glasses)
Alternate Universe Soundwave and his gang arrive in 1985.
Terrorclaw dies. Horrorclaw joins AU Swoundwave's gang. (Gang War)
AU Soundwave's gang builds Toys "B" Us. (Gang War)
Bludgeon, Thunderwing, and Mintor and AU Soundwave's gang do battle, using hyponotized Tranformers. The two gangs are consolidated under Abebird's command. (Gang War)
Shockwave reveals that he faced Mintor during the 4 million years that Megatron was lost in space, and that Mintor is powerful beyond imagination. (Gang War)
Ramjet & Thrust become Popeman & Cardinal. (Crisis of Faith)
Abebird, Thunderwing, Bludgeon, and Mintor are sent to the Beast Wars through a magenta vortex. (Crisis of Faith)
Megatron uses the time machine to drop Ironhide off in the Beast Wars to find Abebird.
Nightbeat, Siren, and Prowl steal the time machine from the Decepticons and travel through the ages in search of Ironhide. (Time Travails, The Road Not Taken)
Abebird, Thunderwing, Bludgeon, and Mintor return to 1985 in the Autobot shuttle. (The Road Not Taken)
Prowl, Nightbeat, Siren, and Ironhide return to 1985 using the stolen Decepticon time machine. (The Road Not Taken)
Abebird gives birth to Megabird and some other guys have a baby too. Gears has a snack. (A Modest Proposal)
Perceptor's shuttle crashes into Toys "B" Us, destroying it. Octane, who was chasing Perceptor, arrives on Earth. (The Rubber Bung)
Abebird and his gang travel a few months into the past aboard the Lincoln Memorial, which has been outfitted with the Decepticon time machine. (The Rubber Bung)
Abebird and company return from near past. (The Rubber Bung)
The Autobots and Decepticons play Family Fued to decide who gets to keep an energy collector. (Fued for Thought)
Abebird moves out of the Decepticon base, taking the prisoner, Spike Witwicky, with her.
The Decepticons cheat at Family Fued and Starscream and Ironhide are forced into a duel to the death. The Autobots cheat to help Ironhide win. (The Idiot Within)
With Abebird missing, there's no one to take care of Megabird, so Megatron leaves her on the Autobots' doorstep. To get Elita's mind off the baby, the Autobots take a trip to Disney World, but leave Megabird home alone, so Megatron takes her back. (A Megabird in the Hand...)
Communications with Cyberton are cut off.
Kup arrives from Cybertron, babbling about some trouble facing the planet. (The Only Thing We Have to Fear is Beer Itself)
The Decepticons test the space bridge on some Insecticon clones, and they come back totally mangled. (The Only Thing We Have to Fear is Beer Itself)
At midnight, the Y87 bug causes various maladies to afflict the Autobots. (The Only Thing We Have to Fear is Beer Itself)