Sometimes the past won't stay hidden, it demands to be uncovered...

Arthur Pettinger's memory isn't what it used to be. He can't always remember the names of his grandchildren, where he lives or which way round his slippers go. He does remember Maryse though, a woman he hasn't seen for decades, but whose face he will never forget.

When Arthur's granddaughter, Maddy moves in along with her daughter Esther, it's her first step towards pulling her life back together. But when Esther makes a video with Arthur, the hunt for the mysterious Maryse goes viral.

There's only one person who can help Maddy track down this woman – the one that got away, Joe. Their quest takes them to France, and into the heart of the French Resistance.

When the only way to move forwards is to look back, will this family finally be able to?