Autobots and Decepticons are at war, with humans on the sidelines. Optimus Prime is gone. The key to saving our future lies buried in the secrets of the past, in the hidden history of Transformers on Earth.

As humanity picks up the pieces, following the conclusion of "Transformers: Dark of the Moon," Autobots and Decepticons have all but vanished from the face of the planet. However, a group of powerful, ingenious businessman and scientists attempt to learn from past Transformer incursions and push the boundaries of technology beyond what they can control - all while an ancient, powerful Transformer menace sets Earth in his cross-hairs.

On their home planet of Cybertron, the Autobots and Decepticons are involved in an explosive battle over the coveted AllSpark. With the fate of the universe at stake, the Autobots send it far from the reaches of the ruthless Megatron, leader of the Decepticons. But there are even more surprises in store when it crash-lands on Earth.

The Transformers is the first animated television series in the Transformers franchise. The series depicts a war among giant robots that can transform into vehicles and other objects.

Young teenager, Sam Witwicky becomes involved in the ancient struggle between two extraterrestrial factions of transforming robots – the heroic Autobots and the evil Decepticons. Sam holds the clue to unimaginable power and the Decepticons will stop at nothing to retrieve it.

Roll out with Optimus Prime, Bumblebee, Arcee, Ratchet, Bulkhead, and the rest of the heroic Autobots as they battle the evil Decepticons. Now that big bad Megatron has returned with a mysterious and dangerous element, Team Prime must prepare for an epic battle.

The Autobots must stop a colossal planet-consuming robot who goes after the Autobot Matrix of Leadership. At the same time, they must defend themselves against an all-out attack from the Decepticons.

Transformers Animated is an Japanese/American animated television series based on the Transformers toy line. The series debuted on Cartoon Network on December 26, 2007, and has been shown on NickToons in the UK since February 2008. It is produced by Cartoon Network Studios and animated by The Answer Studio, MOOK DLE., and Studio 4°C . The series has 42 episodes across three seasons. The European Jetix began to air the series on September 10, 2008. The series began its broadcast in Japan on April 3, 2010, on both TV Aichi and TV Tokyo. The Japanese version of the cartoon was slightly rewritten to tie into Michael Bay's Transformers trilogy. The show's continuity is separate from any other previous Transformers series, despite using footage from the first series in its first episode as a historical film. Despite being a Cartoon Network original series, the show was aired on Nicktoons in the UK, Jetix/Disney XD in the rest of Europe and finally, back in the states on The Hub in high definition.

Sam Witwicky leaves the Autobots behind for a normal life. But when his mind is filled with cryptic symbols, the Decepticons target him and he is dragged back into the Transformers' war.

On their dying planet, the Autobots and Decepticons battle fiercely for control of the AllSpark in the Transformers universe's origin story.

After the Combiner Wars ended, Cybertron started to be rebuilt. However, an undead Starscream has been reincarnated as Trypticon, wreaking havoc around him. To combat this menace, Windblade gathers up a ragtag team of Transformers, including Optimus Prime and Megatron, to resurrect an ancient ally. And while some may be forever changed by the events, others may not emerge with their sparks intact.

A team of specialized Autobots not quite ready for prime-time battles against the Decepticons is given a vital mission by Optimus Prime. The goal for the Bots is to learn about mankind and how to help others to find out what it really means to be a hero.

Sam Witwicky takes his first tenuous steps into adulthood while remaining a reluctant human ally of Autobot-leader Optimus Prime. The film centers around the space race between the USSR and the USA, suggesting there was a hidden Transformers role in it all that remains one of the planet's most dangerous secrets.

A resurrected Unicron has taken over the now-lifeless body of Megatron to seek vengeance on the Autobots and ultimately, the destruction of Cybertron.

Transformers: Cybertron, known in Japan originally as Transformers: Galaxy Force, is the 2005-2007 Transformers toy line and animated series, another co-production between Hasbro and Takara. It was aired in Japan as a separate rebooted transformers series, though in America, the English dub was presented as a sequel to the previous series, Transformers: Armada and Transformers: Energon by adding dialogue and reusing a number of screens to link elements of the Armada and Energon series to the show, giving the impression that it is a sequel. In the anime, all of the Transformers are computer-generated, while the humans and backgrounds are rendered in traditional cel animation. It is the last series in the Transformers franchise to be produced in Japan.

Two spaceships, one manned by benevolent Maximals, the other by evil Predacons, crash-land on a pre-humanoid planet while en route to Earth. Their crews assume indigenous animal forms to protect themselves from an overabundance of natural energy, transforming into robots to do battle. Thus, the Beast Wars have begun...

Transformers: Armada, known in Japan as Chō Robot Seimeitai Transformers: Micron Densetsu, is a Transformers animated series, comic series and toy line which ran from 2002–2003. It was originally scheduled for 2001, however was delayed until early-2002. As the first series co-produced between the American toy company, Hasbro, and their Japanese counterpart, Takara, Armada begins a new continuity/universe for Transformers, with no ties to any of the previous series, including the immediately prior Transformers: Robots in Disguise in 2001. It would go on to birth a sequel in the form of Transformers: Energon.

When Bumblebee begins to suffer amnesia, his partner, Windblade, comes to the rescue, and repairs his memory chips, enabling him to rediscover his past adventures on Cybertron. Once his memories are repaired, Bumblebee gets a clue that will lead both him and Windblade to complete their current mission and save their friends, unaware that Megatron sent his Decepticon assassins to hunt them down.

Several decades after the Great War between the Autobots and the Decepticons on Earth, the two factions have disbanded and a three member ruling council rules in place of the absent leaders Optimus Prime and Megatron. An uneasy peace has been created on Cybertron, but the rise of the Combiners threatens to bring it to an end.