Fire on the Mountain

Both armies converge on a crystal of immense power hidden in the Andes, with the human Witwickys caught in the middle.

While patrolling a refinery, Trailbreaker and Brawn spot Thundercracker and Starscream stealing steel. The Decepticons get away with the loot by collapsing the refinery behind them. The Autobots report back to Optimus Prime, who is puzzled about the Decepticons' motives. The Autobots launch a Sky Spy to home in on any Decepticon activity, and the satellite picks up strange energy readings in the Peruvian Andes.

There, the Decepticons have followed an Incan legend to an ancient temple that rests on a shaft leading deep into the Earth's core, capped by the Crystal of Power. With the metal acquired by Starscream, the Decepticons have fashioned a weapon frame to accommodate the crystal. Laserbeak spots the Sky Spy, and Megatron tests the weapon by blowing the satellite out of the sky. The metal, however, proves inadequate and melts with exposure to the raw energy unleashed from the Earth's core. Starscream tries to shift blame to Thundercracker for the faulty metal, but Megatron blames them both and has them stay behind at the temple while he soars to a nearby mining town to find replacement metal.

The nearby Peruvian mining town is abuzz with the sudden show of power from the ancient temple. A reactionary elder proclaims that long-forgotten gods have come back to punish them, but her more level-headed granddaughter, Luisa, realizes that someone must have uncovered the fabled Crystal of Power.

In the Arctic, Sideswipe and Wheeljack are jackhammering through the ice to resurrect the fallen warrior Skyfire. The massive jet emerges from the ice and transforms into robot mode. Wheeljack immediately assigns him to fly back to Autobot headquarters to pick up Brawn and Windcharger before heading down to the Andes Mountains.

In short order, Skyfire is in the Andes, closing in on the Decepticons. Windcharger and Brawn skydive from the jet, tangling with Soundwave and Reflector while Skyfire goes to investigate the strange energy readings from the Incan temple. While the smaller Autobots are able to hold their own against Megatron's lieutenants, the Decepticon leader proves too powerful for them and they scatter. Windcharger desperately calls for Skyfire to return while Brawn bites off more than he can chew in the form of an angered Megatron.

Skyfire zooms in to the rescue and gracefully airlifts Brawn and Windcharger from the thick of Decepticon danger. Skyfire quickly returns to the Ark to pick up some reinforcements and streaks back to Peru. He deposits the Autobots near the mining town to take care of Megatron while he goes to investigate the Incan temple.

The Autobots stop Megatron, Reflector and Soundwave mid-raid, with Brawn having the ball-bearings enough to swipe Megatron's arm cannon and blast the Decepticon leader with his own weapon! Laserbeak steals back the weapon and Megatron swears vengeance. He has gathered a metal strong enough for the Crystal, and requests that Skywarp come to retrieve it, adding further insult to Thundercracker and Starscream who are left guarding the temple.

A stray blast during the battle nearly drops an electrical tower on top of Luisa, but she is saved by Spike and Bumblebee. Luisa quickly explains that these "evil creatures" have stolen the Crystal of Power. She leads Bumblebee and Spike to a secret entrance in the temple. Soundwave detects their presence, and dispatches Ravage to follow them.

—Brawn confronts the Decepticons with fists and horrible puns.

—Trailbreaker, after he and Brawn totally fail to stop the Decepticons.

—Skywarp, being a jerk.

—Trailbreaker, after Megatron prematurely gloats of imminent victory.

—Ironhide and Brawn don't know what Adult Swim has planned for their kind in 20 years.