Ep 1. Darkmount, Nevada

In Transformers: Prime season 3 episode 1, titled "Darkmount, Nevada," the Autobots are in a state of chaos as they try to rescue their leader, Optimus Prime, who has been captured by their arch-nemesis Megatron. The episode opens with the Autobots desperately searching for clues as to Optimus's whereabouts, but to no avail. Meanwhile, Megatron revels in his victory and prepares to use the power of the Omega Lock, a device that can create new Transformer life, to further his own sinister goals.

As the Autobots continue their search, they come across a new adversary in the form of Shockwave, a powerful Decepticon who serves as Megatron's right-hand man. Shockwave proves to be a formidable challenge for the Autobots, but they eventually manage to best him and uncover a clue that leads them to Darkmount, Nevada, a remote and desolate location that serves as Megatron's new base of operations.

Upon arriving in Darkmount, the Autobots realize that they are vastly outnumbered and outgunned by Megatron's forces. However, they are determined to rescue Optimus and put an end to Megatron's plans once and for all. Along the way, they encounter a number of obstacles, including booby traps, Decepticon sentries, and even betrayal from a former ally.

Despite these challenges, the Autobots press on, infiltrating Darkmount and engaging in a fierce battle with the Decepticons. The fight is intense and grueling, with both sides sustaining heavy losses. However, the Autobots ultimately emerge victorious, thanks in part to the timely arrival of a powerful ally.

In the end, Optimus is rescued and Megatron's plans are foiled, but the Autobots are left to pick up the pieces and mourn the loss of their fallen comrades. The episode sets the stage for what is sure to be an action-packed and thrilling season, as the Autobots continue their fight against the Decepticons and strive to protect Earth from their destructive ambitions.