Matt Baker and Mel Giedroyc follow the extraordinary and heart-warming stories of people who missed the chance to say 'thank you' or 'sorry' when it mattered most. From lives that were saved by incredible acts of bravery to hearts broken by past mistakes, there are certain words which, left unsaid, can lead to a lifetime of regret. The show embarks on a journey taking us from the remotest parts of Africa to the Hollywood Hills.

In 1987, soldier Patrick Provis was left fighting for his life after being hit by an IRA mortar. Facing extraordinary dangers, an army helicopter flew in to rescue him and, against the odds, Patrick survived. Now desperate to draw a line under the trauma that continues to haunt him, Patrick can't rest until he's thanked the person who took the decision to rescue him. But so far his 20-year search has got him nowhere. With military records from the Troubles shrouded in secrecy, what are the chances of Matt succeeding where Patrick has failed?

Grace Bates has spent nearly 60 years desperate to apologise to Hermann, the first man she ever loved. They met as teenagers in the 1950s, but a terrible mistake by Grace left Hermann heartbroken and he emigrated to America. Now in her 70s, Grace is more determined than ever to find Hermann, but time is running out. But even if Mel does find Hermann, how will he feel about Grace reappearing in his life, and will he accept her apology? Show less