In the prologue, a scientist named Tonio was reading a diary which belonged to a famous architect named Godey, indicating that two Pokémon between their dimension were fighting and that the battle could lead to chaos in their world. Those written future events were occurring that at that same moment as Palkia, who conquered space and Dialga, who ruled over time were brawling, which caused unfamiliar events in the real world such as the hourglass in Tonio's lab which fell off the shelf and shattered on the floor.