S1, E4: Arleen has travelled from Boston, USA to meet Chris, from north Wales, whose grandparents risked their lives to save Arleen's mother Suze from the Nazis. Jessica, from Llanelli, wishes to meet her online friend Sam, a fellow mum who was also diagnosed with a brain tumour. And Nathan, a former soldier who left the army after trauma caused his behaviour to take a downward spiral, wishes to seek forgiveness from his platoon commander.