Plucky Englishwoman Joan Webster travels to the remote islands of the Scottish Hebrides in order to marry a wealthy industrialist. Trapped by inclement weather on the Isle of Mull and unable to continue to her destination, Joan finds herself charmed by the straightforward, no-nonsense islanders around her, and becomes increasingly attracted to naval officer Torquil MacNeil, who holds a secret that may change her life forever.

General Candy, who's overseeing an English squad in 1943, is a veteran leader who doesn't have the respect of the men he's training and is considered out-of-touch with what's needed to win the war. But it wasn't always this way. Flashing back to his early career in the Boer War and World War I, we see a dashing young officer whose life has been shaped by three different women, and by a lasting friendship with a German soldier.

A group of Anglican nuns, led by Sister Clodagh, are sent to a mountain in the Himalayas. The climate in the region is hostile and the nuns are housed in an odd old palace. They work to establish a school and a hospital, but slowly their focus shifts. Sister Ruth falls for a government worker, Mr. Dean, and begins to question her vow of celibacy. As Sister Ruth obsesses over Mr. Dean, Sister Clodagh becomes immersed in her own memories of love.