The search for a ruthless hit man 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...