Red Night, Timewalker Chronicles Book 1

Alexa should have died in a car accident that forced her car over the side of a cliff. Instead, she is taken by the Archivers and sent through time to either stop or kill the devastatingly handsome Luke Lawson. Luke is one of an elite science team that has created a deadly mutant virus destined to escape and kill billions of people. Alexa has to convince Luke to help her, and stop the enemy who released the virus before it's too late.