 In the series closer, it s the schools ditch day. While Bridget plots to do the ultimate prank, Kate 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. Kate 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.