The BEST Episodes of Life With Derek
Every episode ever - ranked by fan votes!
Last Updated: Aug 17, 2020
Network: Family (CA)
Life with Derek is a half-hour comedy series about a modern blended family, with two type-A 15 year-olds, Casey (Ashley Leggat) and Derek (Michael Seater). Each episode is an alpha-teen comic war between two self-obsessed teenagers in a take-no-prisoners fight for control of their house, their school, and their world.
#1 - Futuritis
Season 4 - Episode 18 - Aired Mar 25, 2009
A worried Casey is having difficulty writing her valedictorian speech for graduation, which she blames on Derek. 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.
#2 - The Bet
Season 2 - Episode 10 - Aired Nov 9, 2006
Derek keeps making bets with people and when Casey wants to join in, she bets that she can get a punk guy, Trevor, from school to ask her out. George and Nora worry about Casey's new look because it scares their family. Meanwhile, Edwin bets Lizzie that someone will call him cool.
#3 - Sixteen Sparkplugs
Season 3 - Episode 14 - Aired Nov 5, 2007
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.
#4 - Date with Derek
Season 2 - Episode 1 - Aired Jul 1, 2006
When Derek asks Casey's best friend, Emily, out for a date, Casey has to wonder: Is he really interested in Emily, or is this some kind of revenge for "stealing" Sam?
#5 - Summer School Blues
Season 3 - Episode 10 - Aired Aug 26, 2007
Derek is forced to attend summer school, but sneaks out and injects some fun into Casey's dull camp curriculum; Edwin and Lizzie set up a lucrative pet-sitting business.
#6 - Male Code Blue
Season 1 - Episode 13 - Aired Jan 22, 2006
Casey likes Derek's best friend, Sam, who has feelings for Casey too. Derek is opposed to a relationship between his best friend and his stepsister so he tries to sabotage the possibility of them coming together by informing Sam of the "Male Code", which says a guy's best friends cannot date their friends siblings (or step-siblings). Derek tries to break Casey and Sam apart but fails to do so.
#7 - 6 1/2
Season 4 - Episode 5 - Aired Sep 12, 2008
Casey is crushed when a new kid at school named Truman starts rating girls, and only gives her a 6½ out of 10.
#8 - How I Met Your Stepbro
Season 4 - Episode 11 - Aired Dec 2, 2008
As George prepares a Mexican fiesta for their second wedding anniversary, Nora gets a reluctant Casey to tell the story of how she and Derek first met.
#9 - Casey & Ralph?!
Season 4 - Episode 12 - Aired Dec 16, 2008
While his parents are away for the weekend, Ralph stays at Derek's home where he begins to develop a crush on Casey.
#10 - Tuesday Afternoon Fever
Season 4 - Episode 13 - Aired Dec 30, 2008
Derek threatens to ruin Casey's dreams of winning an important dance competition; Lizzie tries to convert junk food junkies George and Edwin.
#11 - Rude Awakenings
Season 4 - Episode 15 - Aired Mar 11, 2009
To be eligible for college athletic scholarships, "D" average Derek seeks George and Edwin's help in passing all of his final exams. Meanwhile, Nora and the girls try to get a stressed out Casey to stop over-studying and relax. When neither of these plans work, Derek and Casey are forced to help each other.
#12 - Truman's Last Chance
Season 4 - Episode 16 - Aired Mar 18, 2009
Derek serves as a chaperone for Casey who is going to a party in Toronto with Truman. Lizzie goes out on a date with a boy that the family has never met.
#13 - He Shoots, She Scores
Season 2 - Episode 2 - Aired Jul 29, 2006
Derek and Casey have a competition with who is the best sister or brother. However Lizzie has a problem playing hockey and Derek is the only one who could be her trainer and seeing as Derek is always with Lizzie, Edwin asks Casey for help about girls. What could possibly go wrong?
#14 - Battle of the Bands
Season 2 - Episode 5 - Aired Oct 6, 2006
Derek's band is so desperate for a singer that they ask Casey to join; even though she's more folk than metal and thinks they're a bunch of posers. George, remembering his rock 'n roll youth, longs to join the band himself.
#15 - Crushin' the Coach
Season 2 - Episode 7 - Aired Oct 20, 2006
When Casey becomes attracted to Scott, Lizzie's soccer coach, he asks her out. But Lizzie too, is attracted to Scott. Derek feels guilty after hearing from Scott that he's dating other soccer sisters. Meanwhile, George is upset after Nora says that she did not feel love at first sight with George.
#16 - It's Our Party
Season 3 - Episode 2 - Aired May 18, 2007
George and Nora plan a joint birthday party for Lizzie and Edwin. It's a fiasco until Casey and Derek reluctantly provide emergency help.
#17 - Don't Take a Tip From Me
Season 3 - Episode 6 - Aired Jul 21, 2007
Casey and Derek both land jobs at the same restaurant, and things don't go quite as Casey expected when Derek is a great waiter and she is a terrible waitress.
#18 - Home Movies
Season 3 - Episode 8 - Aired Aug 5, 2007
Casey tries to film a heartwarming saga of a blended family for her school project, but her family members won't cooperate.
#19 - Show-Off-Tune
Season 3 - Episode 9 - Aired Aug 11, 2007
When Derek gets bumped up from the chorus into a lead role in the school musical, Casey gives him some advice so he won't ruin the show.
#20 - Adios Derek
Season 3 - Episode 12 - Aired Sep 25, 2007
George and Derek's mother Abby are dismayed Derek is failing Spanish, and decide that he should live with Abby in Spain for six months.
#21 - A Very Derekus Christmas
Season 3 - Episode 16 - Aired Dec 3, 2007
When Christmas plans go awry, Aunt Madge encourages Derek to help restore the family's holiday spirit.
#22 - The Party
Season 1 - Episode 3 - Aired Oct 2, 2005
Casey and Derek must persuade their parents they can be left alone for the weekend. Casey intends to have a quiet weekend at home and watch some movies with Emily, but as always Derek has conflicting plans and has a party and damages the house.
#23 - Grade-Point: Average
Season 1 - Episode 5 - Aired Oct 23, 2005
Casey discovers she has a reputation as a grade-grubber and wants to rid herself of it by choosing a slacker to work with on a group assignment – like Derek. Derek is on the brink of failing English and wants to pick someone smart to work with on the same group assignment – like Casey.
#24 - Babe Raider
Season 1 - Episode 11 - Aired Dec 18, 2005
Casey notices Derek, Edwin, and Sam playing a sexist video game (Babe Raider) and immediately launches a campaign against the sexist attitudes in the house.
#25 - The Poxfather
Season 1 - Episode 7 - Aired Nov 6, 2005
Derek is quarantined at home as he is with the chicken pox, and is hiding a secret which Casey intends to find out. George has to prevent himself from getting the chicken pox Derek has, as he has a job presentation.