Every year during autumn, the chipmunk family gets together for a jamboree at Farmer Bly's barn in the mountains of Virginia. There's a lot of fun, food, and, of course, music!  Chipmunk families come from all over to dance and party. Grandma and Aunt Clara make their famous walnut cookies and acorn pies, while Emmy Lou sings and Grandpa plays the banjo.  But this year, there's a small problem. Sidney the skunk has made his new house under the barn, right where the chipmunks have their jamboree. They certainly don't want to make him mad, or he'll stink up the whole place!  The chipmunks aren't sure what to do. But Farmer Bly's old hound dog, Buster, has an idea how to get Sidney out of there. Will it work, or will the chipmunk jamboree be ruined?.