One family perpetrated a conspiracy that killed a United States president and, now, threatens our present-day leader - eight decades later. History tells us that the president died peacefully in his bed with no reason to suspect foul play; yet, one month ago, a diary was found revealing the detailed plans for his murder. Curious about motives, out-of-the-box thinker Morgan takes a time-travel prototype and a pair of hypnotic rings back to 1939 looking for the answers.