Jeff (Cavan Clarke) and Tommy (Louis Gaunt) are two American pilots shot down somewhere in Scotland. With Tommy badly wounded, they’re desperately trying to reach the nearest American base when, lost and exhausted, they stumble upon a group of strangely dressed and – considering the ongoing war – unusually joyful people.

They’ve discovered Brigadoon on the day of a wedding between two young townsfolk. So bewildered are they by what they see that they don’t initially notice their ailments have mysteriously vanished. Unknown to them, Brigadoon is a magical place that appears for just one day every hundred years: when its people sleep, they awaken exactly one century later.

The pilots are invited to join the wedding celebrations, which they cautiously accept. The locals are equally intrigued by their guests, having no concept of what Americans are or of the surrounding war. The headstrong Meg (Nic Myers) sets her sights on Jeff, who rebuffs her advances, while something deeper stirs when Tommy meets Fiona (Danielle Fiamanya), the bride’s sister. The question that unfolds isn’t whether love blossoms between Tommy and Fiona, but whether it can survive when he discovers Brigadoon’s true nature and what staying would demand of him.