Starting with her one-person school strike for climate justice outside the Swedish Parliament, the film follows Greta - a shy student with Asperger’s - as she rises to prominence, and her galvanising global impact as she sparks school strikes around the world.
The film culminates with her gruelling wind-powered voyage across the Atlantic Ocean to speak at the UN Climate Action Summit in New York City. En route, in an intensely emotional moment, Greta reflects on the enormous toll her mission has exacted.
I Am Greta . BBC