Charlie, a fiery and brilliant young actress, meets a mysterious stranger on the beach in Greece, and he draws her into an international espionage operation.

In London, Kurtz’s team prepare for the next stage of the operation as Charlie waits and wonders if Michel’s people will make contact.

Sister Julienne’s faith is challenged when a mother refuses medicine for her newborn baby. Dr Turner’s involvement in the case forces him to face his own demons. Meanwhile, Barbara must…