The story revolves around a supercomputer being built in a secret government lab working on a project called Trinity.
Tennant subsequently tries to piece together the truth behind the project while he and his psychiatrist Dr. Rachel Weiss are pursued around the globe.
Tennant suffers from a series of regression episodes, which are considered to be seizures by his doctor, who says they are caused by overexposure to a super-MRI scan.
During these episodes, he has strangely vivid dreams, in which he witnesses the beginning of the universe (the Big Bang) and the history of mankind.
They take a bizarre turn when he sees himself as an NSA assassin sent to kill him, and also as his dead friend, Andrew Fielding, in his last moments.