Slug was just a normal snail with one vow. That vow was to never leave West Valley Park. That vow was never broken until he ran into the mighty General Wood. Wood threatened Slug to leave West Valley Park after a simple outsmarting. Slug now must defend his vow to protect his beloved home and fight till the end. But he can't do it alone. He must now recruit animals to help fight against General Wood. But in order to do so, he must break his vow.