Darker than the Sky

When a small plane crashes near Van Weathers’ ranch, it uncovers new clues related to an old treasure map, prompting his son Josh to plan a horse camping trip into the mountains. While Van remains skeptical about the treasure, he sees the trip as a chance to mend their strained relationship. As they explore the wilderness of Big Sur, they discover that the crash was no accident, and that others are also in search of the treasure.