When two American backpackers disappear during a No-Go Challenge scavenger hunt in South America, the parents' tearful pleas reach James. He orders the Phoenix team undercover as backpackers to find the missing kids and bring them home alive.

The man responsible for the team doxxing and the rigged SUV reveals himself and his motive for targeting Phoenix. This cunning new adversary's carefully crafted plans force Mac to make an impossible choice: save the life of a friend or save the lives of hundreds of innocents. Mac receives new information that will drive a wedge between him and his father.