Arnaud (Kevin Azaïs) prepares for what looks like a very dull summer working at the family’s woodcutter business when all of a sudden he meets tough and tenacious Madeleine (Adèle Haenel). Arnaud quickly falls for Madeleine after they are both entangled in a spontaneous wrestling match at the beach. Madeleine spends her days running, swimming, fighting and training as she believes the apocalypse is near; she enlists into a 2-week long military boot camp. Arnaud follows in her footsteps and joins the boot camp as well. Their relationship is a combination grudge match and true love.