As Prince Harry prepares to launch the third Invictus Games in Toronto, we meet four members of the UK Armed Forces team who, despite suffering life-changing physical and mental injuries on the front line, have battled against all odds to rebuild their lives.
In this powerful and inspirational documentary narrated by Carmen Ejogo, the three former soldiers and combat medic reveal their darkest hours and moments of unexpected joy, whilst preparing to compete with 16 other nations on the sports field.