Fleeing from the war that has raged on the planet Cybertron for millions of years, the heroic Autobots led by Optimus Prime encounter a surprise attack by the evil Decepticons led by Megatron. The ensuing melee aboard the Autobot ship ends when the ship crashes on a volcano. Four million years later, an earthquake reactivates the ship`s computer and resurrects both the Autobots and Decepticons, resuming the great war of the Transformers. 
(Source: AniDB)

In the distant future, an evil entity known as Violenjiger resurrects nine of the most feared generals in Destron history. While saving some inhabitants of a planet destroyed by these Destrons, Cybertron leader Victory Saber is seriously damaged. The leadership of the Cybertron forces is passed on to the heroic robot Dai-Atlas. Together with Sonic Bomber, Dai-Atlas must protect a mysterious crystal on Earth known as the "Zodiac" from falling into the hands of Violenjiger.
 
(Source: Anime News Network)

Beast Wars Neo was a television series that aired in Japan in 1999, in support of the toyline of the same name. It directly follows Beast Wars II. 
The show follows the adventures of a crew of Maximals, commanded by Big Convoy, as they compete with Magmatron's evil Predacons to collect the Angolmois energy capsules, scattered at the end of Beast Wars II.

The film revolves around the Maximals, led by Lio Convoy; the Predacons, led by Galvatron; and a mysterious device that has crashed on Planet Gaia (a future version of Earth), leading to the arrival of a legendary Maximal warrior, and the protagonist of the original Beast Wars series, Beast Convoy (Optimus Primal). Galvatron also uses the device to summon a monster Decepticon called Majin Zarak, who threatens to destroy all the Maximals. 
(Source: Wikipedia, edited)

A huge black hole is about to swallow the entire universe, including the Transformers' home planet Cybertron.. While Galaxy Convoy and the others search for a solution, the Transformers escape from the collapsing planet and infiltrate Earth as "robots in disguise"...Galaxy Convoy encounters Vector Prime and learns of the existence of "Planet Force", an ancient relic capable of resetting entire planets, believed to have been lost thousands of years ago with Cybertronian explorers who failed to build a space bridge to the edge of the universe.
 
Thus, Galaxy Convoy and the Cybertron warriors he leads embark on a grand adventure across the vast universe in order to find the Planet Force and awaken the ancient warrior Primus to save the universe. 
 
However, Master Megatron and his underlings plot to control the entire universe by acquiring this power, and they relentlessly obstruct Galaxy Convoy and his friends...Will Galaxy Convoy and his friends be able to safely obtain Planet Force? 
 
(Source: TV-Aichi, translated, edited)
 
Note: The international version considers this series a sequel to Micron Densetsu (Armada) and Superlink (Energon), featuring references to characters and events from the two, as well as an additional scene in episode 51 linking the three.
 
Note: The US release initially combined episodes 1 and 2 into one, before ultimately airing a dubbed version of episode 2 as episode 52.

It is the year 2005. Twenty-one years after the heroic Autobots and the evil Decepticons resumed their neverending war on planet Earth, the Decepticons have conquered the robots' home planet Cybertron. After a surprise attack by the Decepticons, both factions wage a gruesome battle at Autobot City. In the midst of the battle, Autobot leader Optimus Prime dies during his fight with Decepticon leader Megatron. The Autobot Matrix of Leadership is then passed on to second-in-command Ultra Magnus. Meanwhile, a badly-damaged Megatron is jettisoned by Starscream into deep space, where he encounters the planet-eating robot Unicron and is reborn as Galvatron, the new Decepticon leader. With Galvatron's reign on the rise and Unicron's imminent arrival within Cybertron's orbit, the Autobots must act quickly and protect the Matrix or face total annihilation. 
(Source: Anime News Network)

On the mechanical planet of Cybertron live super robotic organisms known as Transformers. There, mainly consisting of convoys, the Cybertron army, and their old enemy Destron fell into conflict to gain hold of a new power to join their side. A new breed of Transformers known as the Microns. But, grieving over the battle the Microns set off to the other end of the universe. 4 million years later, on Earth, 3 young children activated a mysterious panel inside a cave. And somehow, that was the dormant Micron...

Released theatrically as part of a triple feature of animated films based on Takara properties. The other two short movies included were "Super Doll Licca-chan" and "Microman". Due to the relatively late theatrical release, the episode was not included on Pioneer's Japanese DVD box set of Beast Wars Metals. 
(Source: AniDB)

The plot focuses around a Cyborg woman named Ivy, who defends the entire universe from enemies with her built-in evil-sensing computers. The enemy infects her with a virus. Now the only one to save her is Diatron 5, the mecha shrunk down to microscopic size that goes in to fight the bacteria. Two kids, a battle station called the "Star Wars" and Diatron's inventor join her in the battle against evil. Evil being an androgynous woman named Mary, her brother with blue skin who looks suspiciously like Spock and their fleet of robots and forest green demon-like aliens.
 
(Source: TV Tropes)

Even though the Destrons have been driven off Earth, a small team of Cybertron Pretenders have remained behind, just in case. Led by Metalhawk ("Hawk" in his human identity), the Pretenders live among the humans, using their Pretender shells to assume human size and appearance. The Cybertrons' caution is rewarded: Destron Pretenders soon appear, led by a mysterious force called Devil Z. The Cybertrons and Destrons soon build up their forces, recruiting humans to become Junior Headmasters and Godmasters (Powermasters).
 
(Source: Anime News Network)

Beast Wars II tells the story of a battle waging between Lio Convoy's team of Cybertrons (Maximals) and Galvatrons army of Destrons (Predacon) on the planet Gaia. As LioConvoy and Galvatron fight over the mysterious energy source known as Angolmois energy, many strange occurrences and mysterious properties of Angolmois begin to arise.
 
(Source: Anime News Network)

An evil race of transforming robots known as the Destronger make their appearance known by invading a world exposition in New York and abducting Professor Onishi, a renowned scientist. The professor's son Yuuki befriends Fire Convoy and the heroic Cybertron forces, who will stop at nothing to rescue the professor and protect Earth from the wrath of Gigatron and his Destron henchmen.
 
(Source: Anime News Network)

After an incident at Mount Fuji unearths the slumbering Dragotron, Demon Emperor of the Predacons, his minions known as the Four Oni subsequently awaken and seek to restore their unconscious master to full power. To do so, they must obtain five mystical items known as the Legendiscs, which have been hidden away. However, in response to their awakening, two three-member teams of Autobot combiners, each belonging to a subgroup called the Swordbots, have likewise been summoned to counter this new Predacon threat. 
Answering the call of two human boys, the Swordbot Samurai Team comes to aid Isami Tatewaki, and the Swordbot Shinobi Team teams up with Tobio Fuuma. The two teams use their combination abilities to battle the Predacons, and recruit both Isami and Tobio to help them in their fight. And with the guidance of Optimus Prime, both teams must find all of the remaining Legendiscs—which are located in various points in time throughout history - so as to keep them safe from the Predacons.
 
Note: Japan-exclusive sequel to the US cartoon Transformers Prime, commemorating the 30th anniversary of the Transformers series. Released on DVDs bundled with Shogakukan's Terebi-kun (TV-kun) magazine and Kodansha's TV Magazine.

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