Chop Shop

In 17,000 B.C., the Seven Primes travel across the galaxy to create Energon with star-absorbing machines named Sun Harvesters. One of them, later known as The Fallen, defies their sole rule to never destroy planets with life by establishing a Sun Harvester on Earth. He is confronted by the other Primes, who stop him before he can harvest the planet's Sun using the Matrix of Leadership. The Primes then sacrifice themselves to hide the Matrix in an unknown location.