Bo Creel and Scratch Morton aren't the settling down types. They're lifelong drifters who keep one eye on the horizon, one finger on the tigger, and one foot out the door. Roaming the West is what keeps them young, or so Scratch tells Bo. But when they save the life of Cyrus Keegan -- the owner of a matrimonial agency -- they receive an unexpected proposal that's hard to resist. Keegan needs to deliver five mail order brides to a mining town in New Mexico Territory. All Scratch and Bo have to do is get these gals to the church on time -- and alive if possible. For better or worse, they agree. The job seems easy enough -- and the brides-to-be are even easier on the eyes. Cecilia, Beth, Luella, Rose, and Jean all need good husbands. But their prospects look bad when the journey to the altar includes Mexican banditos, scheming silver robbers, and one overbearing rancher who won't take no for an answer. Bo and Scratch promised to keep the ladies safe -- and keep their hands to themselves -- but it could be the last vow they'll ever make.