Julie and Alan's relationship is put to the test when an intruder breaks into their house and steals some old family photographs. Mark sets out to track him down, but soon begins to question himself. Meanwhile, Danny is forced to make a difficult decision in order to save his marriage.

The nerve-shredding penultimate episode enters a dark world of devastating secrets as the mystery surrounding Jesse takes another earth-shattering turn.Danny and Mark go it alone. But just as they think they're getting close to the truth, Mark discovers some devastating news that makes him question everything.