Thrown into a desperate race to prevent an apocalyptic nightmare, Marine Captain David Summerfield is spiritually transmigrated 2000 years into our past. His assignment: transfer his spirit into his past life as a Roman Praetorian tribune and assassinate an illegal intruder in the past timeline. While he fights to stop a bloody rebellion on Roman occupied Britannia in 142 A. D., back in his time flip-flop political differences threatens to close the CIA clandestine sponsored project. A handful of archaeologists struggle to halt the cancellation and bring him back. As rewritten history is seriously tampering with time's progression, David is confronted with one major blockage after another.