They're both undercover...and in way over their heads.

To arrest a powerful cult leader, Officer Simon Woolridge needs evidence that ex–group member Andi Matheson doesn't know she has. But the pregnant heiress is being targeted by two killers – and hiding even more secrets. Now as she and Simon go on the run through a ferocious Colorado blizzard, her resourcefulness ignites a passion the cynical agent never saw coming...and a trap they have only one shot to survive.