Genesis - The Extinction Series, #1

The clock is ticking for the human race. Max Dumerick has spent his life doing the dirty work of the highest bidder. When his last job awakens his reluctant conscience, he teams up with an unlikely duo to stop a would-be god. When Melanie Edwards realizes she is being hunted, her desire to protect her family forces her to make hard choices - ones that will lead her into the belly of the beast. Abandoned by the woman he loves and left with nothing but cryptic messages, Ryan Edwards stumbles across evidence of the coming apocalypse...
and must make a choice between warning the world and protecting his daughter.