Unsatisfied with the investigation now that the girls' disappearance has made headlines, Cassie and Jenny take things into their own hands, tapping into their individual strengths to make headway in the case. Meanwhile, Legarski attempts to keep cool, but Ronald takes a different approach to protect himself. Still captive, Danielle and Jerrie tend to Grace, who makes a painful decision in an attempt to save them all.

Jenny and Cassie feel as if they're closing in on Legarski, but they are racing against the clock as he and Ronald are preparing to move the girls. Jerrie makes one last attempt to convince Ronald to let them go. Elsewhere, Cassie visits Merilee to question her about her husband and Ronald aggressively confronts his mother.

Jenny and Cassie officially team up to track down Ronald. Merilee struggles with the fact she didn't truly know her husband. Helen learns about her son's deeds.

Cassie and Jenny work against the clock to find Ronald and prove Legarski’s guilt, calling on Grace to join their efforts and bravely help them in the process. Just when all the pieces start falling into place, Ronald’s emotions get the best of him as he makes an unthinkable decision, even for him. Merilee plays an unwilling and life-changing role in turning the case on its head on.