Overview: A man caught up in the 7/7 terror attacks searches for the stranger who held his hand, and a woman whose family fled war-torn Bosnia looks for the doctor who helped them escape.
Overview: An activist diagnosed with HIV in the 1980s searches for the therapist who gave him hope for the future, and a man shot during the Troubles looks for the nurse who was his ‘angel'.
Overview: A Falklands naval veteran tracks down survivors from his squadron, and a migrant to 60s Britain searches for the teachers who helped him overcome childhood racism and xenophobia.
Overview: Twin brothers who fled Nazi Germany search for the family who helped them escape, and a woman who housed 21 child refugees from Bosnia looks for their mystery schoolgirl translator.