The Kid Brother is a drama film about 12-year-old Kenny Easterday, who despite being born without legs and pelvis due to a rare congenital condition, leads an active life as a skateboarding enthusiast. A French-speaking film crew documents his story, putting pressure on him and his family members. As tensions rise, Kenny's older brother Eddy, and parents Sharon and Jesse come to the surface, forcing Kenny to embark on a journey of self-discovery.