Where can I watch Star Wars Rebels: Spark of Rebellion in United States?

It is a dark time. The Jedi are no more, and the Empire rules the galaxy with an iron fist -- bringing tyranny to the Outer Rim world of Lothal. Their ominous presence is a cloud over the planet, squashing any hope of freedom or a better life, especially for 14-year-old orphan Ezra Bridger. But the young con artist soon finds that destiny has other plans for him, as he encounters a small band of rebels who dare to strike back against the Empire.