When God sends Musso to be Joe Willy's friend, the boy has no idea that his furry companion will also be his teacher and guide.

It is not long before Musso and Joe Willy become best buddies. Together, they play football and explore the woods. But when Joe Willy finds a tree frog and temporarily puts it in his pocket for safekeeping, trouble lurks in the shadows. Now it is up to Musso to gently lead Joe Willy in the right direction.

In this comical adventure for children, a loyal dog must teach his mischievous best friend an important life lesson, with help from God.