Ida lives on a sailing yacht with a crew of five men. While on shore leave in Marseilles, she becomes fascinated with the French Foreign Legion and decides to sail to Sidi Bel Abbès, the Legion's former headquarters in Algeria.

To live and to love at the age of 18, immersing yourself in the carefree summer days and nights, losing your best friend suddenly, and realizing that nothing lasts forever. It’s a time of decisive encounters in order to be reborn.