John Sims moved to Tucson, Arizona, for a peaceful life, but his new home held an unexpected mystery. After hearing a rumor that something was buried in his backyard, he started digging and discovered a hidden hatch leading to an underground structure.

Carefully exploring with a team, he realized he had found a Cold War-era nuclear bomb shelter built in the 1960s. The discovery gained widespread attention, even making international news. Inspired by other Tucson residents with similar shelters, John plans to restore his bunker into a Cold War museum, preserving history for future generations.