A trusted family friend picks up Jan after school to go horseback riding, but as nightfall looms and they're still not home, what seemed like a casual afternoon slowly turns nightmarish.

The search for Jan escalates as the Brobergs call in the FBI. Jan is tasked with a disturbing life-or-death responsibility.

The Berchtolds and Brobergs grow closer, but as Mary Ann and the girls fall under the spell of their fun-loving neighbor, Bob sees him as a threat.

The Brobergs fight to restore normalcy as they prepare to face B. in court. Jan's anxiety about the mission snowballs with time. Mary Ann's unanswered questions about Mexico and growing disconnect with Bob lead her to a gut-wrenching decision.

When the Brobergs' marriage is thrown into jeopardy, Bob and Mary Ann must face the terrible consequences of their mistakes. B strengthens his sinister hold over Jan.