When Ben and April's parents mysteriously vanish during an archaeological dig, the siblings discover a shocking family secret: they are descendants of one of history's legendary Lost Tribes. Armed with a cryptic map and their parents' research, they must follow a global trail of ancient clues, racing against a ruthless organization that wants to bury the truth forever. Their journey takes them from dusty museums to hidden temples, forcing them to solve puzzles and trust each other in a high-stakes adventure to find their family and protect a world-changing secret.