Paid to accompany two orphaned siblings to their grandfather in Nebraska, Lily Winter is dismayed to discover the old man has gone missing. And when the children's inheritance makes them a target, buying protection is Lily's only option. Until a handsome gun–for–hire suggests another solution: marriage.

Undercover US Marshal Jake Elder can't reveal his true identity without blowing his mission. Nor can he leave the town's pretty new arrival unguarded. But while uncovering a plot against her charges is difficult and risky, falling for Lily is all too easy. Especially once their marriage in name only gives Jake a glimpse of how wonderful Christmas–and their future as a family–could be.