After moving into their new house Casey (Ashley Leggat) decides she needs a room of her own – or rather, she wants Derek’s (Michael Seater) room.

When Casey (Ashley Leggat) humiliates herself by falling on top of her new classmates in the school hall, right in front of Derek’s best friend Sam (Kit Weyman) on whom she has a crush, Casey gets the embarrassing nick name: Klutzilla.

When Casey (Ashley Leggat) and Derek’s (Michael Seater) parents decide to go away for the weekend, Casey and Derek must convince their parents that they can be trusted to take care of Edwin (Daniel Magder), Lizzie (Jordan Todosey) and the house without a babysitter – but Derek has other plans!

Tired of the male-dominated grossness that has taken over the house, Casey (Ashley Leggat) suggests making the living room a little more feminine. But when Nora (Joy Tanner) and George (John Ralston) start to argue over the changes, Derek (Michael Seater) and Casey unite to return things to the way they were.

Casey (Ashley Leggat) is shocked to discover that she has a reputation as a grade-grubber: someone who nitpicks for every grade point. In order to get rid of this reputation, Casey decides to work with Derek (Michael Seater), the ultimate slacker, on an English project.

Mayhem ensues as Casey (Ashley Leggat) and Derek (Michael Seater) volunteer to organise their aunt’s wedding reception and Casey’s nemesis - cousin Vicky (Sarah Gadon) shows up just in time to make things difficult.