A troubled detective returns to his hometown to investigate why a young boy would kill his parents.

Ambrose and Heather begin to unravel where Julian is from. Julian is thrust into a new world.

Heather makes a startling realization about Marin. Vera and Julian are dealt a hard blow.

Ambrose returns to Mosswood to confront Vera about the commune's work.

As Ambrose zeroes in on a new suspect, a rift develops between him and Heather.

Vera reveals Mosswood's past to Ambrose, leading to a turn in Julian's case.

Heather and Ambrose continue their search for Julian as Marin’s past is unraveled.