1956. Algeria is a French colony. Fernand and Helene are madly in love. Fernand is an activist, fighting for independence alongside the Algerians. Helene is fighting for Fernand’s life. History will irrevocably change the course of their destiny.

Julien is 10 years old. He pretends to go to school but then hides out under a bridge, his backpack filled with clothes. A few kilometers away, 15-year-old Joséphine does the same and waits for the bus.

Sara is spending her summer at Denis and Annie's small lavender production. The couple lives with their nephew Victor who is immersed in a deep mutism. Lavender tells the encounter of these 2 teenagers completely poles apart but that a family secret will soon unite.