Brotherhood Protectors: Moving Target (Unknown Identities #5)
Regan Black

Scott Blackwell proudly served the U.S. Army until he was accused of murder, court martialed, and imprisoned. When a covert team pulls him out of his cell things go from bad to worse with an impossible ultimatum: kill one target and go free, or go back to jail for life.
Jaime Castle is headed home to Montana for some much-needed vacation time. Wrestling to change a flat tire on a deserted road, she's grateful for the help of a stranger - until she finds herself caught up in a world of trouble and danger she didn’t know existed. Now she must decide who to trust and what to believe before it's too late.