The amazing cellist Yo-Yo Ma convened a group of musicians, in the year 2000, to explore what would happen when musicians from different cultures, wielding very different types of instruments, learned to work and play together. In the wake of 9/11, the bridging of differences became an increasingly important focal point – and this documentary, using home movies and performance footage from the time of the inception of The Silk Road Ensemble, charts its growth, its triumphs, and its gloriously unique approach to music.