A boy's quiet life is upended when his friend's death sparks a feud with a wealthy landowner. Fleeing, he finds refuge, but a fallen meteorite bestows his horse with powers, while fueling the landowner's thirst for revenge.

The story revolves around the simple lives of Caloy, his parents Lucas and Helen, and their sickly horse, Chalk. Their quiet family life changes when Caloy's playmate, the son of rich haciendero Miguel, falls off a horse and dies. Miguel blames Caloy and vows to hunt him down. Caloy flees with his loyal horse Chalk and finds refuge under baranggay captain Leon del Torro. The forces of good and evil clash when a meteorite falls and splits in two; the pieces land on Chalk and Miguel. Powered by the meteorite, Chalk becomes a powerful talking stallion, while Miguel experiences evil powers fueled by his lust for revenge.—Anonymous