For more than 50 years, the world has wanted to know who Killed President John F. Kennedy. Well, now that time travel has been perfected, Will Barrett and his team at the Space Time Research Project can go back to 1963 to find out, once and for all, who fired the fatal shot. But there are powerful people who will do anything to prevent them from finding the truth. The obstacles are nearly insurmountable, and the team will get only once chance to succeed...