Transformers: Quest for the AllSpark

Transformers: Quest for the AllSpark is the movie. Re-imaging the original Transformers: The Movie in Transformers: Universe (Reboot).

Plot
After the Battle of Autobot City, the Autobots are holding a little ceremony at Autobot City which undergo repairs where Optimus Prime began making a speech, in which he mentioned Prowl. Optimus also says that they are there to honor Bumblebee and knights him as a warrior for ridding the universe of the scourge of Megatron.

The Decepticons are making their escape aboard Astrotrain, but are too heavy for him to get them all home under his own power. After putting the matter to a fair vote, the Decepticons decide to throw the Starscream and the Insecticon clones off the ship to better the chance of survival for the rest, including the mortally wounded Megatron. Too injured to save himself, Starscream 2 tosses Megatron out into space and claims leadership of the Decepticon army. Cyclonus and Tidal Wave fly behind in a attempt to bring Megatron.

Megatron and the other adrift Decepticons then encounter the prototype Unicron in interstellar space. Unicron offers to rebuild Megatron and his minions in exchange for their service. After some coercion on the planetoid's part, Megatron agrees, and is reformatted into Galvatron. Cyclonus and Tidal Wave are reformatted into Snow Cat and Mirage. The other Decepticlones are turned into Cyclonus, Scourge, and the Sweeps. Unicron provides them with a ship, the Revenge, and sends them to kill Optimus Prime, Ultra Magnus and destroy the Matrix, stating that the Matrix is the only thing which can stand in his way. Galvatron first stops at New Kaon to take his revenge by killing Starscream 2 and reclaiming leadership of the Decepticons.

Meanwhile, Optimus uses the Star Saber to promote Bumblebee from Scout to Warrior. Wheeljack begins the celebration by blowing up Megatron's statue overhead. Bulkhead and Wheeljack chest bump and Smokescreen welcomes Bumblebee to the Warrior rank. After making Bumblebee a warrior, Wheeljack states that they should celebrate starting with the detonation of Megatron's statue but Optimus politely refuses, thus proving Arcee's opinion of Primes never party. Optimus says that they still have much work to do and that their planet Cybertron is currently incapable of generating new life until he can recover the AllSpark. Optimus explained to his team that as the dawn of Cybertron's war reached a tipping point, he had sent the AllSpark to a distant sector of the galaxy. With energon on Earth safe, the Autobots decide to confront some unknown entity.

On the Moon, Dr. Jones presents a new craft he's developed: the Miranda II, a massive, highly durable vessel powered by its own energon tower, allowing the Autobots to expand their search for energon. Bee Team store the various Iacon relics including the Star Saber and the Forge of Solus Prime in the ship's storage. Optimus Prime assembles his team, which to Kicker's surprise includes Misha. The ship launches. Its first mission is to retrieve the physical AllSpark from where it was hidden during the Great War and destroy the entity.

The Miranda II leaves Earth's solar system and arrives at the AllSpark's location in Theta Scorpii, the most dangerous sector in the galaxy, as Kicker implied. Arriving in an asteroid field, Optimus Prime said that Alpha Trion forged an indestructible vessel that was capable to hold the AllSpark from any danger. Not wanting to risk losing the Miranda II in the hazardous conditions there, Optimus continues on alone.

Almost immediately afterwards, the prototype Unicron arrives in New Cybertron's vicinity and devours at least two moons—both of the Autobots' moon bases are destroyed. Under coercion by Unicron, Galvatron finally heads to Mars to kill Ultra Magnus, but Magnus and the other surviving Autobots flee in a pair of shuttles. Eventually, Galvatron manages to cause one shuttle to crash on yet another metal planet (Quintessa), and detonates the other with a volley of missiles. However, the Autobots in the second shuttle escape unnoticed by separating the front portion of their shuttle just before impact.

Over at Theta Scorpii, Kicker volunteers to head out and refuses to let Optimus go out solo. He suits up and heads into the asteroid field... only to immediately lose control and go tumbling head over heels. The Autobots coach him into regaining control, and Kicker finally sights the AllSpark's container. Optimus finally comes within reach of the AllSpark when Wheeljack detects a massive plasma storm coming in. Despite his warnings, Optimus continues toward the AllSpark. He just barely reaches the AllSpark as the plasma storm approaches. Optimus returns to the ship with the AllSpark. He orders Wheeljack to return to Cybertron as soon as possible, in which Wheeljack questions the size of the AllSpark.

The Decepticons detect the ship, and move to respond. Ultra Magnus attempts to contact Optimus, but the damage the shuttle sustained means though his message gets through, Optimus can't respond. Galvatron and the Decepticons arrive and prepare to attack on the Miranda II. Misha prepares to deploy the ship's energon shield while Bee Team defends the AllSpark from the Deception prisoners and Team Prime engage the Decepticons. Ironhide knocks Snow Cat into the Insecticons before they cause the hull breach, leaving them dazed.

Galvatron orders the Revenge to launch the moleculon missiles at the Miranda II. Misha activates the energon shield. As an alarmed Ironhide and Demolishor both watch, the rapidly expanding shield grows toward Optimus and Galvatron, who are engaged in battle. Demolishor flies in to push his leader aside, and is caught by the field. As a bright light engulfs him, Ironhide flashes back to their time on Earth together, and... rather calmly notes that they'd better get going. Demolishor begins to disintegrate, vows that Optimus Prime will pay for this, and then explodes. Ironhide watches and again notes that they should get in the ship, which he does backward. A small glowing spark descends from the explosion, landing in the palm of Galvatron's hands. He leads his remaining troops away, while the Miranda II heads for Cybertron in light-speed drive.

Amid a somber atmosphere on the bridge, Prime thanks Kicker for his help finding the AllSpark; Kicker modestly shrugs it off, thanks Misha for her help, and notes that there's still a lot more work ahead. As Ironhide gazes out the windows at the passing space, nobody much notices that their former comrade just died.