May 68, Isabelle returns home injured, panicked. Pursued by CRS, she has just lost track of her boyfriend. His parents are overwhelmed. They force Isabelle to leave for the provinces to escape the Parisian unrest. The next day, Isabelle is enraged, she wants at all costs to return to Paris, where her father goes to his factory. His mother is formally opposed to it. Determined, Isabelle hides in the back of her father's station wagon. In the night, she wakes up in the moving car, two women are in the front.