The Room

S1 : E1 | TV-Y7 | 23 min | Aired: 09.18.05

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.

House of Games

S1 : E2 | TV-Y7 | 23 min | Aired: 09.18.05

Casey (Ashley Leggat) and Derek (Michael Seater) face-off in games of chance in order to win premium real-estate within the house.

The Fall

S1 : E3 | TV-Y7 | 23 min | Aired: 09.18.05

When Casey humiliates herself by falling on top of her new classmates in the school hall, right in front of Derek’s best friend Sam on whom she has a crush.

The Party

S1 : E4 | TV-Y7 | 23 min | Aired: 09.18.05

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.

All Systems No Go

S1 : E5 | TV-Y7 | 23 min | Aired: 09.18.05

Chaos in the house prompts Casey to implement some basic house rules. Meanwhile with Nora away at a retreat, George needs to enlist everyone’s help to organize the book club.

Marti the Monster

S1 : E6 | TV-Y7 | 23 min | Aired: 09.18.05

Nora and George need a babysitter for an upcoming trip and Derek ends up being left in charge of Marti who has fun terrorizing him as he tries to impress the new girl from school.

Puppy Dog Tails

S1 : E7 | TV-Y7 | 23 min | Aired: 09.18.05

Tired of the male-dominated grossness that has taken over the house, Casey suggests making the living room a little more feminine.

Sweet Misery

S1 : E8 | TV-Y7 | 23 min | Aired: 09.18.05

When Derek (Michael Seater) flips the TV remote at Casey (Ashley Leggat) causing her to hurt her ankle, Casey decides to return the favor and make Derek really suffer.

Grade-Point: Average

S1 : E9 | TV-Y7 | 23 min | Aired: 09.18.05

Casey is shocked to discover that she has a reputation as a gradegrubber. To get rid of this reputation, Casey decides to work with Derek.

Babe Raider

S1 : E10 | TV-Y7 | 23 min | Aired: 09.18.05

Offended by the video game Babe Raider, Casey (Ashley Leggat) decides to counter the sexist male attitude in the house by coming up with a set of feminist house rules.

The Wedding

S1 : E11 | TV-Y7 | 23 min | Aired: 09.18.05

Mayhem ensues as Casey and Derek volunteer to organize their aunt’s wedding reception and Casey’s nemesis - cousin Vicky shows up just in time to make things difficult.

The Poxfather

S1 : E12 | TV-Y7 | 23 min | Aired: 09.18.05

Sequestered at home with the chicken pox, Derek is forced to ask Casey to help him with his ‘in school merchandising’ business selling the Derek line of products.

Male Code Blue

S1 : E13 | TV-Y7 | 23 min | Aired: 09.18.05

When Derek realizes his step-sister Casey has a crush on his best friend Sam – and that Sam is interested in Casey – he tries to put a stop to things

Date With Derek

S2 : E1 | TV-Y7 | 23 min | Aired: 07.01.06

Casey is so worried that Derek will hit on her best friend that Derek asks Emily out on a date – to bug Casey or because he actually likes her?

He Shoots, She Scores

S2 : E2 | TV-Y7 | 23 min | Aired: 07.01.06

As penance for his latest misdemeanor, Derek is told to coach Lizzie in hockey. Casey gets jealous of Derek’s relationship with her little sister so agrees to coach Edwin.

Middle Man-ic

S2 : E3 | TV-Y7 | 22 min | Aired: 07.01.06

Derek couldn’t case less that Casey and Sam are always breaking up and getting back together, until they break up for good and Sam’s ability to play hockey goes down the tubes.

Battle of the Bands

S2 : E5 | TV-Y7 | 23 min | Aired: 07.01.06

Derek’s band is so desperate for a singer that they ask Casey to join; even though she thinks they’re a bunch of posers. George longs to join the band himself.

Lies my Brother Told Me

S2 : E6 | TV-Y7 | 23 min | Aired: 07.01.06

Casey, compromising all her principles, takes Derek’s advice and lies when she desperately needs an extension on a school assignment.

Crushing the Coach

S2 : E7 | TV-Y7 | 23 min | Aired: 07.01.06

Lizzie’s soccer coach asks Casey out which creates a problem for Lizzie because she has a crush on him herself. Derek is glad Casey isn’t going to be around the house so much.

Prank War

S2 : E8 | TV-Y7 | 23 min | Aired: 07.01.06

To pay Derek back for his many jokes, Casey pulls a huge prank of her own: stealing the office furniture from the new uptight Vice Principal. Everyone assumes Derek did it.

Freaked Out Friday

S2 : E9 | TV-Y7 | 23 min | Aired: 07.01.06

While Casey is freaking out about her dance competition and Derek is freaking out about his hockey playoffs, Lizzie and Edwin decide they’re sick of being the middle-kids.

The Bet

S2 : E10 | TV-Y7 | 23 min | Aired: 07.01.06

Derek bets Casey that she’s too much of a goody goody to go out with Trevor. Casey desperately wants to win the bet, and changes her image completely in order to attract Trevor.

Mice and Men

S2 : E11 | TV-Y7 | 23 min | Aired: 07.01.06

One of the cool girls at school asks Casey to partner with her for the English project. She realizes, that Kendra isn’t as interested in her brains as she is in her stepbrother.

Dinner Guest

S2 : E12 | TV-Y7 | 23 min | Aired: 07.01.06

Casey invites her father to dinner so he can see where they now live and meet the rest of the family. The dinner is a fiasco.

Dating Game

S2 : E13 | TV-Y7 | 23 min | Aired: 07.01.06

When Casey bemoans her single status Kendra offers to play matchmaker. Derek is pleased because he gets to throw another party, except that’s a disaster too.

Two Timing Derek

S3 : E1 | TV-Y7 | 23 min | Aired: 05.11.07

Since Derek already has a girlfriend, Casey is shocked when he asks out a friend of hers. She tries to get him to do the right thing before she does it for him.

It’s Our Party

S3 : E2 | TV-Y7 | 23 min | Aired: 05.11.07

George and Nora plan a joint birthday party for Lizzie and Edwin. It’s a fiasco until Casey and Derek reluctantly provide emergency help.

Rumor Mill

S3 : E3 | TV-Y7 | 23 min | Aired: 05.11.07

After Derek breaks up with Kendra so he won’t have to buy her a Valentine’s Day gift, Kendra asks Casey’s crush Max to the Valentine’s Day dance.

Misadventures in Babysitting

S3 : E4 | TV-Y7 | 23 min | Aired: 05.11.07

Derek turns out to be the world’s worst babysitter, so Edwin invites his friend Teddy over to stir up some trouble.

Slacker Mom

S3 : E5 | TV-Y7 | 23 min | Aired: 05.11.07

Casey risks losing her ‘cool’ status when Nora tries to recruit her new friends to help at the high school fun fair.

The Bully Brothers

S3 : E6 | TV-Y7 | 23 min | Aired: 05.11.07

When Edwin gets picked on by a schoolyard bully, he goes to Derek for advice, inadvertently causing Derek big trouble of his own.

Power Failure

S3 : E7 | TV-Y7 | 23 min | Aired: 05.11.07

Casey is shocked when Derek is selected to be a prefect at school and sets out to prove he’s not the man for the job; Edwin and Lizzie are jealous that Marti always gets her way.

Adios Derek

S3 : E8 | TV-Y7 | 23 min | Aired: 05.11.07

George and Derek’s mother Abby are dismayed Derek is failing Spanish and decide he should live with Abby in Spain for six months.

Sixteen Sparkplugs

S3 : E9 | TV-Y7 | 23 min | Aired: 05.11.07

The family stages an intervention to convince George to buy a new car; Derek faces the scary possibility of spending his 16th birthday at home with his family.

Don’t Take a Tip From Me

S3 : E10 | TV-Y7 | 23 min | Aired: 05.11.07

Casey and Derek both land jobs at the same restaurant, and things don’t go quite as Casey expected.

Fright Night

S3 : E11 | TV-Y7 | 23 min | Aired: 05.11.07

When Casey lectures Derek and Edwin for watching scary movies – which she finds silly and fake – they take her admonishment as a dare… to scare.

When Derek Meets Sally

S3 : E12 | TV-Y7 | 23 min | Aired: 05.11.07

Derek swears off girls until he meets Sally, the attractive new waitress at Smellie Nellie’s. Lizzie is freaked out when her best friend Jamie tells her he likes her.

Make No Prom-ises

S3 : E13 | TV-Y7 | 23 min | Aired: 05.11.07

Casey’s dream of a romantic prom night turns into a nightmare when Derek accidentally ruins her dress.

Summer School Blues

S3 : E14 | TV-Y7 | 23 min | Aired: 05.11.07

Derek sneaks out of summer school and injects some fun into Casey’s dull camp curriculum; Edwin and Lizzie set up a lucrative pet‐sitting business.

Home Movies

S3 : E15 | TV-Y7 | 23 min | Aired: 05.11.07

Casey tries to film a heart‐warming saga of a blended family for her school project, but her family members won’t cooperate.

Grade A Cheater

S3 : E16 | TV-Y7 | 23 min | Aired: 05.11.07

Derek (Michael Seater) switches test papers with Casey (Ashley Leggat), and then lures her into a scheme that will keep them both out of trouble.

Ivanwho?

S3 : E17 | TV-Y7 | 23 min | Aired: 05.11.07

Idealistic Casey (Ashley Leggat) expects her boyfriend Max (Robbie Amell) to be as chivalrous as the literary hero Ivanhoe.

Derek Un-Done

S3 : E18 | TV-Y7 | 23 min | Aired: 05.11.07

When signals get crossed, Derek (Michael Seater) thinks he has a chance with Sally (Kate Todd), and Casey (Ashley Leggat) is sure Max (Robbie Amell) is going to dump her.

Not So Sweet 16

S3 : E19 | TV-Y7 | 23 min | Aired: 05.11.07

Derek (Michael Seater) turns Casey’s (Ashley Leggat) plan for a sophisticated sweet 16 into a bash more to his liking.

Driving Lessons

S3 : E20 | TV-Y7 | 23 min | Aired: 05.11.07

Casey (Ashley Leggat) is thrilled to get her driver’s license before Derek (Michael Seater), until she gets stuck playing chauffeur to her younger siblings.

Cheerleader Casey

S3 : E21 | TV-Y7 | 23 min | Aired: 05.11.07

Casey (Ashley Leggat) tries out for the cheerleading squad despite the fact that her boyfriend’s jealous ex‐girlfriend Amy is the head cheerleader.

Show-Off Tunes

S3 : E22 | TV-Y7 | 23 min | Aired: 05.11.07

When Derek (Michael Seater) gets bumped up from the chorus into a lead role in the school musical, Casey (Ashley Leggat) gives him some advice so he won’t ruin the show.

Allergy Season

S3 : E23 | TV-Y7 | 23 min | Aired: 05.11.07

Casey (Ashley Leggat) develops mysterious allergies after Max (Robbie Amell) gives her his football jacket.

Things That Go Bump in the Night

S3 : E24 | TV-Y7 | 23 min | Aired: 05.11.07

Grounded for the weekend, Derek (Michael Seater) and Casey (Ashley Leggat) put a dent in George’s (John Ralston) car when they try to sneak out to a party.

Derek’s School of Dating

S3 : E25 | TV-Y7 | 23 min | Aired: 05.11.07

Derek (Michael Seater) and Edwin (Daniel Magder) both strike out despite Derek’s patented dating techniques.

A Very Derekus Christmas

S3 : E26 | TV-Y7 | 23 min | Aired: 05.11.07

When Christmas plans go awry, Aunt Madge encourages Derek (Michael Seater) to help restore the family’s holiday spirit.

Two Kisses One Party

S4 : E1 | TV-Y7 | 23 min | Aired: 07.19.08

Sally is disappointed in Derek when he refuses to help out at Marti’s (Ariel Waller) birthday party; Casey asks Max if he wants to get back together.

Open Mic Plight

S4 : E2 | TV-Y7 | 23 min | Aired: 07.19.08

Derek has trouble expressing his feelings, so Sally suggests that he write her a song. Edwin is hurt when no one finds his comedy routine for the talent show funny.

Just Friends

S4 : E3 | TV-Y7 | 23 min | Aired: 07.19.08

Casey sets out to prove Derek wrong when he claims guys and girls can’t be just friends.

March Break

S4 : E4 | TV-Y7 | 23 min | Aired: 07.19.08

Casey (Ashley Leggat) and Derek (Michael Seater) choose to stay home alone while the rest of the family goes on a road trip to Quebec City for March Break.

Take A Stepkid To Work

S4 : E5 | TV-Y7 | 23 min | Aired: 07.19.08

Casey (Ashley Leggat) spends a day at George’s (John Ralston) law office; Derek (Michael Seater) nearly loses business for Nora (Joy Tanner).

6 1/2

S4 : E6 | TV-Y7 | 23 min | Aired: 07.19.08

Even though she tries not to care, Casey (Ashley Leggat) is crushed to learn the cute new guy, Truman (Joe Dinicol), rated her a mere 6 1/2 out of 10.

Derek Denies Denial

S4 : E7 | TV-Y7 | 23 min | Aired: 07.19.08

Derek (Michael Seater) insists he’s fine after breaking up with Sally (Kate Todd) but Edwin (Daniel Magder) and Casey (Ashley Leggat) are concerned about him.

No Secrets

S4 : E8 | TV-Y7 | 23 min | Aired: 07.19.08

When Casey’s dream diary– documenting her persistent dreams about Truman – goes missing, she’s convinced either Edwin or Derek have taken it

Rude Awakenings

S4 : E9 | TV-Y7 | 23 min | Aired: 07.19.08

With his D average, it’s going to take more than supersonic cramming to get Derek (Michael Seater) into university.

How I Met Your Stepbrother

S4 : E10 | TV-Y7 | 23 min | Aired: 07.19.08

On her wedding anniversary, Nora tries to distract herself from George’s Mexican fiesta fiasco by recalling Casey and Derek’s plot to stop their parents’ marriage.

Happy New Schoolyear

S4 : E11 | TV-Y7 | 23 min | Aired: 07.19.08

All the kids are in crisis about going back‐to‐school in September, but they have to put their problems aside to stop Derek from dropping out of school to go west with Sally.

Casey & Ralph?!

S4 : E12 | TV-Y7 | 23 min | Aired: 07.19.08

When Ralph decides he’s in love with Casey, Derek encourages him to go for it.

Tuesday Afternoon Fever

S4 : E13 | TV-Y7 | 23 min | Aired: 07.19.08

Derek threatens to ruin Casey’s dreams of winning an important dance competition; Lizzie tries to convert junk‐food junkies George and Edwin.

No More Games

S4 : E14 | TV-Y7 | 23 min | Aired: 07.19.08

Casey gets stuck taking fencing in gym with none other than flirtatious Truman as her partner. Back at home Edwin and Derek are engaged in a bro vs bro ping‐pong tournament.

Teddy’s Back

S4 : E15 | TV-Y7 | 23 min | Aired: 07.19.08

Edwin’s friend Teddy infiltrates the McDonald‐Venturi household, with a secret plan to out-prank master prankster, Derek; Truman promises Casey a date she’ll never forget.

Truman’s Last Chance

S4 : E16 | TV-Y7 | 23 min | Aired: 07.19.08

Casey is forced to accept Derek as a chaperone to a Toronto party she wants to attend with Truman, while an obnoxious Edwin chaperones Lizzie’s date at Smelly Nellie’s.

Surprise!

S4 : E17 | TV-Y7 | 23 min | Aired: 07.19.08

Derek and Casey find themselves fighting over Emily as a date to the prom.

Futuritis

S4 : E18 | TV-Y7 | 23 min | Aired: 07.19.08

Casey has been chosen valedictorian for the high school graduation but is having trouble writing her speech celebrating the future because she has a bad case of ‘futuritis.’