Fifteen-year-old Derek (Michael Seater) is unhappy about his dad's remarriage, mostly because it means he now has to deal with two stepsisters, the older of whom has her heart set on taking over Derek's bedroom. Casey: Ashley Leggat. Edwin: Daniel Magder. Lizzie: Jordan Todosey.

Casey meets resistance from her siblings and parents when she tries to create order amid the chaos that is their home life. Meanwhile, George needs help from the kids if he's going to pull off an important book club meeting that's taking place at their house while Nora is away on a retreat. Mr. Davis: James Codrington. Linda Davis: Catherine Burdon. Amy: Kayla Mills.

A budding romance between Casey and Sam seems to have little chance of growing after Derek informs Sam of the “male code,” which prevents friends from dating their best friend's siblings. Elsewhere, Nora and George take a quiz to determine how well they know their kids.

Casey gets more than she bargained for when she attempts to add a feminine touch to the living room and, in the process, starts a decorating feud between her parents. Derek: Michael Seater. Edwin: Daniel Magder. Nora: Joy Tonner. George: John Ralston. Casey: Ashley Leggat.

Casey is enraged to learn that she has been labeled a “grade grubber” by her fellow classmates. To rid herself of this unflattering rep, she decides to team up on a school project with the biggest slacker she knows: Derek. Michael Seater. Marti: Ariel Waller. George: John Ralston. Nora: Joy Tonner.

As Aunt Fiona's wedding planner, Casey strives to make the ceremony and reception absolutely perfect and hitch-free, but things start to go wrong when Casey's cousin---and archrival---Vicky (Sarah Gadon) interferes. Meanwhile, Derek gets his first directing job: He's been asked to film the nuptial celebration. Fiona: Tara Manuel Rigal. Nora: Joy Tonner.

Derek makes Casey an offer she can't refuse. She agrees to run his highly profitable school-based business in exchange for a new cell phone and a more desirable locker location while he's at home recovering from chicken pox.

Casey engages in a high-stakes game of chance against the master of cheating siblings, Derek; and George finds himself in hot water for mentioning his ex's name during a heated argument with Nora.

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We don't have an overview translated in English. Help us expand our database by adding one.

A budding romance between Casey and Sam seems to have little chance of growing after Derek informs Sam of the “male code,” which prevents friends from dating their best friend's siblings. Elsewhere, Nora and George take a quiz to determine how well they know their kids.

Casey wonders whether Derek has an ulterior motive when he asks her best friend Emily (Shadia Simmons) out on a date.

Derek is forced to spend time with Lizzie, teaching her hockey; Casey offers Edwin romance tips.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

We don't have an overview translated in English. Help us expand our database by adding one.

Casey decides to get rid of her goody-goody image in an attempt to get Trevor to go out with her---and win a bet with Derek.

A popular girl named Kendra (Lauren Collins) has an ulterior motive---involving Derek---when she chooses Casey as her partner for an English project.

Casey goes against her mother's wishes when she invites her birth father to the house for dinner on what turns out to be an evening filled with surprises---most of them bad.

When Derek already has a girlfriend, Casey is shocked when he asks out a friend of hers, Lucy. Casey asks Emily to dig up information on whether Max is available or not. Meanwhile, Nora has set up a dinner with another family, but some members of her family object.

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Derek defends Edwin from a bully.

Derek swaps test papers with Casey and then devises a plan to keep from getting caught.

Derek's mom tries to get him to live with her in Spain for six months.

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We don't have an overview translated in English. Help us expand our database by adding one.

Derek breaks up with Kendra to get out of buying her a Valentine's Day gift, so she asks Max to the school dance.

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We don't have an overview translated in English. Help us expand our database by adding one.

Max gives Casey his football jacket, which apparently causes her to develop allergies.

Derek breaks up with Sally after she reveals her plans to attend a university in another province. Believing that he is hurt over what happened and is bottling up his feelings, a concerned Edwin and Casey try to get him to open up. Meanwhile, Lizzie and Marti attempt to keep a dog hidden from most of the family.

Derek plans to drop of out of school to be with Sally in Vancouver.

Casey is in panic mode after the diary that details her unsettling romantic dreams about Truman goes missing. Believing that Derek and Edwin took it, Lizzie and Marti attempt to get the diary back by making their stepbrothers' lives miserable.

Casey spends the day with George at his law office where her need to organize things doesn't mesh well with the way he usually does things. Meanwhile, Derek tries to help Nora land a business deal with a client.

A worrisome Casey is having difficulty writing her valedictorian speech for graduation. Meanwhile, Edwin is concerned that he won't be able to live up to Derek's reputation at J.S. Thompson High when he goes there in the fall.