A couple called Penny and Amul arrive at Whitecross claiming to have news of Abby. Ruth goes with them thinking her medical skills are needed at the place where Abby is staying. She soon learns that she is being taken to London instead to help nurse the sick there and that Abby has already moved on. The large settlement in London is run by a man called Manny who does not want Ruth to leave. When Greg and Charles fear for Ruth's safety they journey to London to rescue her... (thetvdb.com)