The Collins siblings have always called their 260-acre farm home, but when the cunning businessman Gregor Williams shows up, their world is turned upside down. He claims he's building a mall—but they soon realize he's after something far more valuable. Treasure. Stories of their great-grandfather Joe Collins and his legendary hidden fortune have always been just that—stories. Until now.

With time running out and their home on the line, Eva, Mike, Leo, and Johnny embark on a high-stakes treasure hunt, following cryptic clues and buried secrets hidden deep within their own land. But teamwork isn't always easy, and neither is staying one step ahead of Gregor, who will stop at nothing to claim the prize. As the adventure unfolds, the siblings will discover that the real treasure isn't gold—it's the family they fight for.