Some truths are more deadly than any virus.

1957. Fort Detrick, Maryland.

The Cold War is at a fever pitch and American virologist Richard Parker is burned out. When he's offered a chance at a quiet break to see his family — if he takes on one last project — he jumps at it.

His new partner is a former scientist from Japan's infamous Unit 731. His proposal is unthinkable: resurrect the 1918 Spanish Flu virus and turn it into a deterrent so terrible the Soviets would never dare attack America.

It's meant to be a weapon for peace.

Until the plane carrying their extraction team goes down outside a small Alaskan city.

One crash. One catastrophic containment failure.

And suddenly a nightmare from history is loose on American soil.

Now, as the blizzard closes in and the body count rises, the megalomaniacal colonel in charge of the program will do anything to cover it up — bury the evidence, silence witnesses, and let the virus burn itself out.

Was the virus meant to be America's salvation, or will it become the harbinger of its doom?

The U.S. military is about to learn that neither the virus — nor the truth — can be contained.

An OSS agent, Adrian Krause, receives a last minute assignment to enter the wolf's den of 1940s Germany.

Looking forward to returning to America to see his family, Krause's trip is stopped abruptly when he is tasked with retrieving top secret intelligence in relation to a German physicist and the Third Reich's atomic weapons programme.

The agent first investigates the physicist, Dr. Joachim Herz, who is a member of the National Socialist party.

The mission becomes complicated when Krause discovers that not all is what it seems.

Two rogue Gestapo officers are blackmailing Herz by sparing his beloved Jewish wife from transportation to the gas chambers.

The OSS agent and member of the Nazi party must now work together.

Before the Gestapo threatens to bring both their lives to a brutal end...