In the series closer, it's the schools ditch day. While Bridget plots to do the ultimate prank, Cate is plotting how to keep her relationship with Principal Gibb under wraps so she won't worry her kids. Kerry is anti-ditch day, and tries to make ditch day a normal day of learning, to what turns out to be a complete bust. When Kerry puts on the prank in her sister's place, she ends up realizing she really has been a goody-two-shoes. Cate also realizes that it's really not that big of a deal that she's dating the principal, and her kids just want what's best for her.