Tom and Nell dock their boat in Montliskeard Bay, focusing their conservationist efforts on the lost waste drum. Martha abuses Luke's clairvoyant visions of the past, and Nell sees him escaping his abuse in the mansion on the bay cliffs.

Nell escapes the diver's attempt on her life, seen in a vision by Luke. Martha tracks down the last of the Montliskeard descendants, keepers of the stones. Tom's boat is suddenly held under ship arrest over supposed drug trafficking.