Transformers 2: Unicron Rises

Transformers 2: Unicron Rises is the official novelization of the second Transformers movie, Transformers: Rise of Unicron. It was written by William C. Dietz, who wrote the adaption of the the first film.

Plot
The Autobots and the humans have worked together to set up MECH, a top secret task force with the mission to hunt down all remaining Decepticons in the wake of Megatron's death. In Shanghai, MECH battles the massive Decepticon Demolishor. As the villain lays dying at the feet of Autobot leader Optimus Prime, it warns him that Unicron shall rise again.

In the United States, Daniel Witwicky is leaving for college, leaving both his girlfriend Carly Spencer and Autobot guardian Bumblebee behind. While preparing his things, he comes across an old t-shirt, which he actually wore the day of Megatron's defeat. A piece of the One, having remained on the t-shirt, falls into his packings and he unknowingly brings it with him to college.

After meeting Carlos Lopez, his new room mate who runs a conspiracy website about the Transformers. Bumblebee shows up and takes Daniel on a drive to see Optimus. However, Daniel tells him that he isn't part of their war. Optimus warns that he soon may be.

Soundwave listens in on a conversation between the humans at MECH and learns that they possess a shard of the One. He sends Ravage to steal it and then sends some Decepticons into the Laurentian Abyss, where the find Megatron's body and use the piece to ressurect him. Returning his ship, the Nemsis, Megatron is greeted by Unicron, who has taken over leadership of the Decepticons. Unicron orders Megatron to kill Optimus, a mission that Megatron accepts with pleasure.

Wheelie, a small Decepticon, is sent to terrorize Carly at her home. She traps him in a safe and decides to head for Daniel to warn him. She is picked up by Bumblebee. At same time, Daniel gets Carlos and himself kicked out of a party. Megatron's second in command, Starscream, arrives and chases Daniel and Carlos into a warehouse. Bumblebee bursts through the wall just in time and saves them. As more Decepticons arrive, Bumblebee manages to escape with Carly and Carlos, but Daniel is left behind. Optimus comes to his rescue, dragging the battle into a nearby forest. He kills Soundwave before Megatron stabs and shoots him, killing him. Bumblebee then returns and rescues Daniel.

The Decepticons begin to attack Earth, with Unicron giving the humans an ultimatum; surrender Daniel and his fugitive friends to them lest they want the attacks to continue. Now on the run, Carlos suggests that they go to his online rival for help. The man turns out to be Seymour Simmons, who takes them free an ancient Decepticon, Jetfire from the Smithsonian. Jetfire reveals that he has defected to the Autobots and takes the group to Egypt. He explains that Unicron was once the leader of a team of Cybertronians tasked with harvesting Energon from suns. Their one rule, however, was that they would not take the sun of a planet with living creatures on it. Despite this, Unicron tried to steal the Earth's sun, forcing the others to rebel and imprison him. Jetfire believes that Unicron is going to try and finish what he started. However, the long lost Autobot Matrix of Leadership is instrumental to his plans. Daniel locates the Matrix inside of a tomb. Simmons alerts MECH to their location and tells them to bring Optimus.

Shortly after MECH arrive, so do the Decepticons. Devastator, a large Decepticon, unearths the Solar Harvester machine atop one of the pyramids. An air strike courtesy of MECH destroys most of the Decepticons, allowing Daniel to take the Matrix and inserts it into Optimus' chest, ressurecting him. However, Optimus is still too weak and Unicron steals the Matrix, allowing him to activate the machine. Jetfire, having been fatally wounded by Ravage, tears his spark out and hands it to Optimus. Newly enhanced, Optimus flies towards the peak and knocks Megatron off before stabbing Unicron through the head, his body falling into the machine and destroying it. In the ruins below, Optimus wrestles with Megatron and leaves him gravely injured.

In the aftermath, MECH stands triumphant and Daniel tells Carly that he loves her.