"Ever since hulking lawman Hobbs, a loyal agent of America's Diplomatic Security Service, and lawless outcast Shaw, a former British military elite operative, first faced off, the duo have swapped smack talk and body blows as they've tried to take each other down. But when anarchist Brixton gains control of an insidious bio-threat that could alter humanity forever, these two sworn enemies will have to partner up to bring down the only guy who might...

A post-apocalyptic thriller set against the backdrop of a deadly epidemic. As the nation reels from a virus that turns its victims into zombies, Wade's daughter Maggie has been infected. Now, as Maggie's condition worsens, Wade will stop at nothing to protect her from the authorities seeking to kill her to eradicate the virus.

With the Whisperer War upon them, the collective communities must come together and possibly sacrifice all they have to find a way to silence the Whisperers once and for all.