Star Wars: The Clone Wars (2008)

S2E10 The Deserter

After being shot down over Saleucami, General Grievous crashes into the wild landscape below. Obi-Wan takes charge of a mission to track down the elusive droid general. During the search, Rex sustains an injury and has to recuperate in a nearby farmer's barn. To his surprise, he learns that the farmer is actually a clone who has deserted his post.