Black holes stand on the boundary of human cognition, and it is a field where unknown and mystery meet.To explore the edge of this knowledge, the Event Horizon Telescope connects observatories around the world to simulate an Earth-sized super telescope.With this extraordinary tool, the scientific research team successfully captured the first black hole image in human history and shocked the world in April 2019 - this image was stared at and amazed by billions of people. At the same time, Hawking and his team of theoretical physicists are committed to solving the core problem of black hole paradox: in black holes whose time and space are extremely distorted, will the prediction laws of the universe still be valid?In this picture of scientific exploration, there is also a third clue - philosophical contemplation and questioning. Through expressive animation presentation, abstract concepts are vividly revealed. "The Edge" tells the story of how explorers standing at the peak of science use observation, theory and philosophy as weapons to jointly pursue the most mysterious existence in the universe.This is not only a film about black holes, but also a magnificent journey about human cognitive limits and infinite curiosity.