<Tr> <Th> 13 </Th> <Td> </Td> <Td> "Episode 1" </Td> <Td> Andy Wilson </Td> <Td> Chris Lang </Td> <Td> 15 July 2018 (2018 - 07 - 15) </Td> <Td> N / A </Td> </Tr> <Tr> <Td_colspan="7"> When workmen carrying out carriage repairs on the central reservation of the M1 uncover human remains, Cassie and the team are called to investigate . Initial reports suggest the remains could be archaeological, but forensic analysis soon reveals that the victim could not have been buried until at least 1991 . Cassie and the team work to identify the remains through a metal plate used to secure a wrist fracture that appears to have some kind of foreign stamp . Sunny manages to identify the plate as having been manufactured by a Greek Cypriot medical company in the mid-1990's, and working on the assumption that the victim may have broken her wrist on holiday, the team begin to trawl through hundreds of missing persons files in the hope of finding an identity . </Td> </Tr> <Tr> <Th> 14 </Th> <Td> </Td> <Td> "Episode 2" </Td> <Td> Andy Wilson </Td> <Td> Chris Lang </Td> <Td> 22 July 2018 (2018 - 07 - 22) </Td> <Td> TBD </Td> </Tr> <Tr> <Td_colspan="7"> Cassie and Sunny visit Hayley Reid's family in Middenham, who confirm to them that she broke her wrist while on holiday in Cyprus in 1995 . Hayley's identical twin sister, Jessica, warns Cassie that reopening the investigation could potentially bring a swarm of negative press back to the town, which in the days after Hayley's disappearance, single - handedly wiped out the town's remaining tourism trade . News of the discovery reaches the four key potential suspects in the investigation, and James immediately begins to crack under the pressure . Cassie and Sunny also meet with former DCI John Bentley, whose senior officer was responsible for the original investigation into Hayley's disappearance . </Td> </Tr>

What was the last series of unforgotten about