In the small town of Walnut Springs, Texas, Billy Jackson and his two best friends, Eleanor and Tommy, spend their summer days lost in the world of their imaginations. Their favorite game takes place in a small patch of trees in Billy's backyard, where they pretend to be heroes fighting against dark forces and ancient powers. But what starts as a simple game soon turns into something far more real and dangerous.

One evening, after a long day of playing, Billy, Eleanor, and Tommy discover mysterious glowing stone fragments in their pockets-fragments that feel strangely familiar, like the ones from their pretend battles. As night falls, the fragments begin to pulse with a strange energy, and the trio finds themselves connected to something much larger than their childhood games.

Their world is thrown into chaos when helicopters begin circling above their neighborhood, clearly searching for them. The fragments shield the friends from detection, but they quickly realize that these stones hold immense power-power that others are desperately trying to control.

Now, Billy, Eleanor, and Tommy must figure out the origins of the fragments and why they were chosen to hold them. Their journey leads them to ancient secrets and hidden dangers, and they realize that the line between imagination and reality has blurred in ways they could never have anticipated.

As they struggle to protect themselves and uncover the truth, the stakes become higher than they ever imagined. The fragments are linked to a powerful and ancient force known as The Source-a force that, if awakened, could change the world forever.

The Source is a suspenseful and mysterious adventure that blends childhood wonder with ancient power, forcing three friends to confront the unimaginable as they become key players in a battle for the future of humanity.