Episode Details

In today's episode, we're traveling back to 1966, to a quiet hillside in Brazil, where two electronics technicians were found dead under strange circumstances. They had carried a bottle of water, a notebook, and a pair of masks made from sheets of lead. A cryptic note revealed they were supposed to swallow capsules, put on the masks, and wait. Decades later, investigators still don't know how they died ... or what they were waiting for.