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As Pastor Tom and his wife deal with Rachel's return, Caleb goes from being a person of interest to the center of a police manhunt when a person from his past is found murdered and an unsolved crime is repeated.
Bellamy and Maggie search for answers and look for any connection between Caleb and Jacob's deaths and subsequent returns. Caleb's strange behavior only adds to the mystery and Pastor Tom gets the shock of a lifetime.
As Jacob's remains are exhumed to help determine his real identity, another formerly deceased person returns to Arcadia alive and seemingly unaware that he had died.
A Federal Immigration Agent is tasked with returning a young American boy found in rural China. Following a hunch, he takes the young boy to the small town of Arcadia, Missouri where he claims to be Jacob Langston, a boy that has been dead for 32 years.