Spending the summer on his grandpa's ranch is nothing new for 10-year-old Charlie, but this year feels different. With his loyal dog, Diesel, by his side, Charlie roams the vast prairies, rides horses, and learns the ways of ranch life. But when he begins spotting a mysterious figure lurking in the distance, a summer of adventure turns into something far more dangerous.
As cattle go missing and eerie tracks appear near the barn, Charlie and Grandpa set out to uncover the truth. What they find is bigger, wilder, and more fearsome than they ever imagined