Re-united after 50+ years apart, Celia and Alan decide to marry. At age 16, Alan's late wife failed to pass on a letter from Celia, his longtime crush, with an apology for missing their first date and her forwarding address. Both now have daughters with lover troubles.

After his teenage daughter goes missing, a widowed surgeon begins uncovering dark secrets of the people closest to him.

Aden 1965. This is the story of a British army unit fighting a Yemeni insurgency in the Middle East and the women and children who were there with them.