As the RAF marks its centenary, Aled Jones is at the Rhyl Air Show in north Wales to hear the extraordinary stories of two Second World War pilots, Welsh local hero David Lord, who was awarded a posthumous Victoria Cross, and 97-year-old Ernie Holmes, a Lancaster bomber pilot who miraculously survived being shot down over occupied territory.

Josie d'Arby visits Winchester Cathedral 100 years after a simple gravestone inscription inspired the creation of the worldwide movement Alcoholics Anonymous.

And the programme meets Christian Joey G, who is using rap music to bring the message of Jesus to the young people of north Wales. There is also a special performance by Blake and The Military Wives Choir, as well as hymns and songs from north Wales and across the UK.

Sean Fletcher reflects on peace and forgiveness by meeting a Christian mother whose son was murdered in a knife attack and who now runs a boxing club to encourage reconciliation between rival gangs. Pam Rhodes talks to the Reverend Nigel Bennett, who survived the 7/7 attack and maintains forgiveness has been essential to his recovery. At Lambeth Palace Sean joins Christians and Muslims learning to gain deeper mutual understanding at a young peacemakers forum. And Canon Andrew White, the vicar of Baghdad, reflects on the results of his pioneering peacemaking work in the Middle East, which he undertook despite the risks to his own life and having MS. With hymns on the theme of peace from around the UK, including Make Me a Channel of Your Peace, Blessed Assurance and There's a Wideness in God's Mercy.