Josh investigates America's daring response to Pearl Harbor, which destroyed a vital Japanese base in the South Pacific. Using brand-new intel, Josh dives in with Project Recover to find 40 planes and 200 American heroes lost in Operation Hailstone.

Trekking deep into Mexico's narco-controlled jungles, Josh hunts for the last Mayan stronghold to ward off the Spanish conquistadors. He joins an expedition braving snakes, spiders and jaguars to uncover the legendary Sac Balam.