The story follows Leotard (played by David Belle , a real-life parkour expert), who leads a gang in the B13 district. The government issues an ultimatum to the district’s residents, threatening to eliminate the wall unless they comply with their demands. As tensions escalate, Leotard and his allies navigate a treacherous political landscape to protect their community from authoritarian forces. The film explores themes of inequality, resistance, and the clash between technology-driven power and grassroots activism.