The Ranger Brigade: Family Secrets Books in Order

Ranger Ryan Spencer hunts a serial killer with Jana Lassiter, whose sister is missing. Jana insists on joining the search, but her determination puts her directly in the killer's path.

Private investigator Kayla Larimer's search for a senator's missing daughter leads to a dangerous Colorado cult. Lieutenant Dylan Holt helps her investigate as an attempted abduction and another disappearance raise the stakes.

Officer Jake Lohmiller fears for his mother and sister inside a cult. Working with undercover sergeant Carmen Redhorse, he investigates the group as violence threatens those they are trying to protect.

Scientist Hannah Dietrich searches for her late sister's missing infant with agent Walt Riley. Posing as married cult followers, they investigate the baby's disappearance and the circumstances surrounding her sister's death.

Michelle Munson infiltrates a cult to investigate her sister's death, only to have her own baby disappear. Ranger Ethan Reynolds helps protect Michelle and search for the child inside the dangerous organization.

Officer Simon Woolridge discovers evidence connecting pregnant heiress Andi Matheson to a former cult. With killers pursuing them, they flee into a Colorado blizzard while secrets complicate his efforts to keep her safe.