A memory loss patient is the peg for a look back on the last seasons of Scrubs, when the Sacred Heart crew looks back at their memorable moments.

When Cole and Kelso both get negative results back after a few routine tests, they learn the hard way to put their egos in check in order to rein in the support of their so-called friends.

J.D. still clamors for Dr. Turk's approval as he approaches his final day of teaching at Sacred Heart, Lucy searches within herself for the courage to perform a basic medical procedure on a real human, and Denise and Drew make things official.

Lucy finds couplings, dysfunctional or not, throughout the hospital

The med students of Winston University finally find something to be thankful for when Cole identifies his true calling in surgery, Drew finds the love of his life, and Lucy finds the inspiration to become a doctor.

While Turk struggles to find a replacement best friend, Elliott offers some sound advice and guidance to an over-worked and exhausted Lucy.

Lucy takes her new assignment as hell week "team leader" a bit too seriously, and Dr. Turk feels threatened when an internationally renowned surgeon pays a visit.

While their wives are out of town, J.D. and Turk attend a med student's party; Kelso says goodbye to Ted and Gooch.

Before receiving their white coats, the med students of Winston University must figure out why they want to be doctors, and Denise gets a little relationship help from Elliot.

A case of guilty conscience plagues the med school when a student cheats on an exam and Dr. Cox takes it out on the entire class. Meanwhile, Denise makes a startling admission of her own.

J.D., Turk, Cox, Kelso and intern Denise return to Sacred Heart to teach med school, while new med students Lucy, Drew, Cole and Maya are put through the ringer on their first day of school.

Lucy learns a hard earned lesson about what it takes to be a doctor. Meanwhile J.D. and Turk spot a potential love connection between Denise and the new med student, Drew, as they play matchmakers with a little bit of help from Dr. Kelso.

The reality of having a baby begins to settle in for both J.D. and Elliot while Lucy struggles with the reality of operating on people.

J.D. and Drew learn a tough lesson in mentoring when Dr. Cox and Lucy show them that sometimes the student is the teacher.

J.D. addresses the news that he is going to be a father and Dr. Cox is worried about how his anger is going to impact his offspring. Meanwhile, Carla and Turk prepare for the impending arrival of their new baby. Elliot feels left out because she is childless, while the Janitor wonders if he has wasted his life.

Elliot begins enjoying luxuries since she has extra money with her new private practice gig. But eventually, J.D. becomes jealous of her and that forbids him the use of these privileges. Dr. Cox and the Janitor become roommates in one of the hospital suites, while Turk tries to convince Carla that she has postpartum depression and that she needs help.

J.D. develops a crush on a new physical therapist but due to his latest misfortunes, he finds it difficult to ask her out. Elliot asks Keith to move in with her, but is not willing to budge on her home rules. Turk breaks his arm and is sent back to residency by Dr. Kelso. Thanks to Dr. Cox, he realizes that he doesn't know as much about medicine as he thought.

J.D. and Kim are surprised of how much they have in common. Recently giving birth, Carla doesn't want to return to work. Meanwhile, Elliot tries to persuade Dr. Turner, a surgeon with thirty years of experience, that medicine is the better option to work with and that surgery could kill him.

When Private Dancer is released from the hospital, the military informs him that his injuries are too severe to be reinstated into the service, so he gets depressed. The Sacred Heart staff try to cheer him up, while the Janitor is having a fish problem.

The Sacred Heart staff has to deal with their inner child, when J.D. and Turk remember their first prank, Dr. Cox has a ten year old Leukemia patient and Dr. Kelso celebrates his birthday.

J.D.'s teenage burn patient gives him a hard decision to make when he wants to go to his high school graduation. Turk doesn't want Carla to find out that he secretly learned Spanish. And to address Dr. Kelso's weight gain, Dr. Cox makes a game out of stealing his breakfast.

J.D., Elliot and Turk find themselves alone in the hospital night shift and face responsibilities without supervision for the first time. Luckily, they have Carla there to support and guide them through the night. Meanwhile, Dr. Cox doesn't know what to do, when he realizes that he has feelings for his ex-wife Jordan and is asked (forced actually) to introduce Dr. Kelso at a social event, where he will be receiving an award from the medical board.

J.D. insists that Carla should open up to him. When she finally starts to do that, J.D. screws it up by telling Turk. Elliot is desperate for attention from Dr. Cox. Turk sees himself in an ethical dilemma when Dr. Kelso picks him over a female surgeon to spend a weekend in Mexico.

Elliot sleeps with a handsome doctor she hardly knew and soon becomes the hospital tramp. Turk suffers from his back after operating with Dr. Amato, a very short surgeon. J.D. finds out that wearing a white coat doesn't make him a better doctor, but is upset by having Dr. Cox throw in his face that he made another mistake. And Dr. Kelso is just dying for an opportunity to lash out his anger on Dr. Cox.

Turk is still waiting for Carla to answer his proposal and asks his brother to stay over a few days to help him deal with it. Dr. Townshend, an old friend of Dr. Kelso and one of the nicest doctors around befriends J.D. Elliot accidentally finds out the sex of Jordan's baby, becoming the object of Dr. Cox's anxiety.