In the sun-baked backyard of an Albuquerque welder named Marcus Reilly, a homemade contraption accidentally forges a tiny, sentient planet the size of a basketball—complete with clouds, oceans, and emotions. Dubbed “Pebble,” the little world begins communicating feelings of warmth and family to Marcus, his sharp-tongued teenage daughter Lily, and his ex-wife Sarah. As Pebble grows and calls out to the cosmos, mysterious forces respond, drawing government attention. In a heartfelt race against time, the fractured family must protect their creation, rediscovering love, trust, and the quiet miracle of second chances.