Three strangers of two generations embark on a road trip through post-Katrina Louisiana. Along the way, relationships forge and change in a myriad of ways, leading to the possibility of second chances at life and love.

In a room with no windows on the eastern coast of Africa, a Scotsman, James More, is held captive by jihadist fighters. Thousands of miles away in the Greenland Sea, Danielle Flinders prepares to dive in a submersible to the ocean floor. In their confines they are drawn back to the Christmas of the previous year, where a chance encounter on a beach in France led to an intense and enduring romance.