The quads accidentally force out the easy-going gym teacher after Ricky tripped him, ruining the class for everyone; he, Nicky, Dicky and Dawn think they've fixed everything with the perfect substitutes, but soon realize their parents have made things worse.

The Quads want to pull off a big stunt so that their class will be remembered by future students, but when they find out that the personal legacy they are leaving behind is not great, they have to fix both before it is too late.