Varoom!!

The sound of a powerful motor echoes deep within a cave somewhere in the Pacific Northwest. Hanging from the ceiling, stalactites vibrate from the sound. A racetrack has been cleared on the rocky floor.

Around the outside of the track stand the Autobots. With them are their human friends Sparkplug Witwicky and his son, Buster.

They are watching a large red van speed around the track. It is Ironhide, the oldest and toughest of the Autobots. He is testing the Sun-Pak, an experimental solar battery designed by Sparkplug. They are deep underground so that the test will be a secret. The Autobots need fuel as much as humans need food. If this battery works, it could be the answer to the Autobots' prayers!

Optimus Prime, the leader of the Autobots, is elated. "Twenty-three hours and still going strong!" he says.

Ratchet has been keeping a close eye on the test. If something goes wrong, he's the Autobot fix-it man. "Hey, Ironhide," he calls to the red van, "how are you feeling? Have your old gears started to wear out yet?"

"Go chew on a microchip!" shouts Ironhide as he whizzes by. "I have never felt better!"

Sparkplug checks his stopwatch. "According to my calculations, he should have full power for another hour."

Continue.