Lucky and Mike, best friends since childhood, travel through New Mexico and into Arizona, accompanied by Blue, a border collie mix. Looking for Lucky's newly discovered half-sister, these friends search across the Southwest, including visits to Las Cruces, Bisbee, and Flagstaff. The clues they follow begin resembling something an undercover genealogist might dream up. Over the weeks, Lucky unscrambles the past, one that challenges stereotypes of family, friendships, and gender, while laying a few good secrets to rest. Meanwhile, Blue, being a most generous dog, embarks on her own search and rescue mission, finding a needing-to-be-bottle-fed pup aptly named Peanut. It's the two dogs - and soon Blue's tiny kitten foundlings - that give this archetypal hero's journey a mixture of heartbreak and comic lightness.