An unexpected volcanic eruption at Crater Lake, the dramatic death of a wanted international munitions dealer at Volcanoes National Park, and a century old, previously undiscovered murder are all part of Special Agent Michael Walker's deadliest case.
Special Agent Michael Walker is called in to investigate the most significant crimes and situations related to the U.S. National Parks. So he is the first one on site when facial recognition software notes the presence of a wanted international fugitive, an international arms dealer, at Hawaii's Volcanoes National Park. When the arms dealer - and the C4 he's carrying - falls to his death in one of those volcanos, Walker thinks the case is over. He couldn't be more wrong.