For thousands of years, these two warriors have pursued one another across the cosmos. The best and most powerful of their race, each of them is a source and focus of a power that dwarfs any other on Earth. Their capacity for destruction is incalculable, and finally – for the last time – each of them focuses all of that power on the other. The AllSpark has been found, and this battle will determine its fate, and the fate of the universe. This is a battle with only one possible outcome. One will stand and guide the universe on its future course, and one will fall and be destroyed utterly.