'August Rush' follows the journey of a musically gifted orphan, Evan Taylor, played by Freddie Highmore. Evan believes that his parents, who were separated at his birth, can hear his music and sets out to find them. The film explores themes of love, destiny, and the power of music to connect people. Freddie Highmore's portrayal of Evan is both heartfelt and inspiring, making 'August Rush' a touching film to watch on YouTube TV.