The search for a ruthless hitman turns into a deadly alpine chase...

Undercover to track the assassin who killed his partner, FBI Special Agent Alex Driscoll accidentally pulls his partner’s widow, Violet Sharp, and her search-and-rescue K-9, Teddy, into the case. Now with Violet’s life on the line, the only way Alex can protect her is to make her — and her enormous dog — his new cover. But can they stay alive long enough to bring the hitman to justice?