Bellamy wants to have Jacob's tomb exhumed; Pastor Tom reaches out to a childhood friend; Caleb claims he can't remember his death.

Exhuming Jacob's grave deepens the mystery of his return; Henry struggles to accept that Jacob is really the son he lost; Maggie and Bellamy wonder if the local river holds a clue that could connect Caleb's and Jacob's deaths.

Tom leads the search for Rachael, as her situation becomes increasingly dire; Maggie and Dr. Ward make a series of unexpected discoveries.