|#1||My American Girl|
J.D, Turk, and Carla work together to diagnose one of J.D.'s patients. Elliot, frustrated that everyone walks all over her and desperately needing to change her bad-luck streak, acts on some advice from the Janitor and gets a make-over. Guest stars Scott Foley as Sean Kelly.
Turk and Carla set the date for their wedding. J.D. is worried about losing his close friendship with Turk and asks him out on a 'man date.' Elliot gets back together with her ex-boyfriend Sean (Scott Foley), but the relationship has a rocky start. Carla obsesses over whose urine is in an unmarked container left at the nurses' station. The title refers to the featured song 'Don't Stop Believin',' by one of J.D.'s favorite bands, Journey.
|#3||My White Whale|
Jordan and Dr. Cox worry about Jack's slight cough and try to get him seen by the hospital's own pediatrician, Dr. Dave Norris (Christopher Meloni), who is as obnoxious as Dr. Cox. The residents get their own interns and the inevitable problems that come with them: Turk is too heavy-handed, J.D. fails to assert his authority, and Elliot continues to deal with her own insecurities. J.D. reluctantly accepts help from dolphin trainer Sean (Scott Foley).
|#4||My Lucky Night|
J.D. distracts the Janitor and Troy the Cafeteria Guy with a riddle. Dr. Cox and Dr. Jeffrey Steadman (Matt Winston) compete for the residency director position. Carla gets to work with Turk when she covers for one of the surgical nurses; Turk is annoyed at first but then appreciative when Dr. Wen (Charles Chun) says it was as though he had a lucky charm in the room with him. Sean's (Scott Foley) and Elliot's relationship hits rocky ground; J.D. seizes the opportunity to admit his hidden feelings for her.
|#5||My Brother, Where Art Thou?|
Dan (Tom Cavanagh) visits again and blames Dr. Cox for making J.D. cynical. After warning hospital staff against taking other jobs, Dr. Kelso catches Elliot and Carla moonlighting at an animal hospital.
|#6||My Advice to You|
Carla's brother Marco (Freddy Rodriguez) visits and does his best to aggravate Turk. Dr. Cox and Dr. Kelso differ in their opinions over patient care, and Dr. Cox is surprised to find that J.D. is taking Dr. Kelso's advice. J.D. is interested in Danni (Tara Reid), a girl who seems sweet, if a little wacky (she has an active inner monologue and speaks random thoughts aloud). But his delight is squashed when he discovers she's Jordan's sister.
|#7||My Fifteen Seconds|
J.D. and Danni (Tara Reid) hook up, prompting Dr. Cox to reveal to Danni that J.D. slept with Jordan. Meanwhile, Dr. Cox and J.D. deal with an extremely annoying patient, Jill Tracy (Nicole Sullivan), and almost miss something extremely important because they spend so little time with their patients (an average of 15 seconds, according to J.D.). Dr. Kelso goes temporarily deaf after using cheap stethoscopes, and Carla's medical advice to Elliot provokes tension between them. Features a cameo appearance by Erik Estrada.
|#8||My Friend the Doctor|
When Dr. Cox badly hurts his back showing off in front of Turk, he begins to realize he's not as young as he used to be. J.D. isn't impressed with the false personalities the Janitor uses on the rest of the staff, until he recognizes him playing a transit policeman in The Fugitive (in which Neil Flynn did appear) and concludes that the Janitor is an actor.
|#9||My Dirty Secret|
After accidentally giving a patient an orgasm during a pelvic examination, Elliot admits she has a problem with the clinical terms for genitalia. Carla attempts to help Elliot get over her fear of 'dirty words,' but realizes she may be too assertive for her own good. Dr. Cox is moved by the relationship between a prostate cancer patient, Mr. Randolph (Barry Bostwick), and his wife. J.D gives advice to Dr. Cox about his relationship with Jordan and his son, and when it doesn't pan out, is subject to Dr. Cox's revenge.
|#10||My Rule of Thumb|
Elliot and Carla get arrested looking for a gigolo for a terminally ill patient who wants to lose her virginity before she dies. Danni (Tara Reid) is uncomfortable after walking in on Jordan and Dr. Cox having sex, and asks J.D. if she could stay at his place. J.D. starts having second thoughts almost immediately after initially agreeing. Dr. Cox and Turk clash over a friend of Dr. Cox who needs a liver transplant.
|#11||My Clean Break|
Nervous about Danni's (Tara Reid) plans to move in with him, J.D. decides he needs to break up with her -- only he's never actually dumped anyone before. The Janitor starts flirting with Elliot again. Dr. Cox realizes that he is no longer frightening to his residents, and therefore may have lost control over them.
Dr. Kevin Casey (Michael J. Fox), a skilled surgeon who has a long history with Dr. Cox and who suffers from crippling OCD, imparts wisdom to everyone at Sacred Heart.
|#13||My Porcelain God|
Dr. Casey (Michael J. Fox) and J.D discover the toilet the Janitor installed on the roof, which earns the name 'epiphany toilet' after every Sacred Heart staff member finds a solution to a problem or a revelation after using it. Dr. Kelso closes down an entire wing of the hospital to save money; Dr. Cox and Carla fight back by using his own office as a patient room. Turk asks J.D. to be his best man, but J.D. is hurt to discover that he wasn't Turk's first choice. Noticing how helpful Dr. Casey has been to her fellow staff, Elliot seeks advice from him on intubation after she botches the procedure.
|#14||My Screw Up|
Jordan's siblings, Danni (Tara Reid) and Ben (Brendan Fraser) visit to celebrate Jack's first birthday. Carla tells Turk she will only take his last name if he has his mole removed. Dr. Cox angrily blames J.D. for a patient's death and excuses him from his duties, and is dismayed to learn that Ben has not been to a doctor for followup since his remission.
|#15||My Tormented Mentor|
Dr. Cox is struggling to recover from his friend's death, and refuses J.D.'s efforts to comfort him; meanwhile, Jordan's self-absorbed friends, Maddie (Embeth Davidtz) and Allison (Julie Warner) are staying with Jordan to comfort her. Carla scolds the Todd, Dr. Kelso and Dr. Cox about sexual harassment, and the new female attending surgeon, Dr. Grace Miller (Bellamy Young), brings up the issue of sexism in the surgical wing.
This episode explores a number of interrelated events, which illustrate the relationships among the Sacred Heart staff. The title comes from a single butterfly interacting with numerous objects and people, in a reference to the philosophical concept of the butterfly effect.
|#17||My Moment of Un-Truth|
Carla has dinner with a former crush and asks J.D. not to tell Turk. Elliot deals with a patient, Mr. Thompson (Alexander Chaplin), who's adamant about not taking drugs; to her surprise, Dr. Cox insists he is a drug addict who will eventually weasel drugs out of her. The Janitor attempts to trick J.D. and Turk into believing he has a twin brother.
|#18||His Story II|
This episode is narrated from Turk's, rather than J.D.'s, viewpoint. Turk delays mailing out the wedding invitations, as it is the point of no return for getting married. During surgery, Turk makes a mistake that causes irreparable nerve damage to a young concert pianist, to whom he can't admit his mistake. J.D. covers Elliot's stint as a hospital clown; the Janitor becomes his sidekick. Elliot realizes just how good a friend J.D. has been to her, and sleeps with him just before Sean (Scott Foley) comes back into town.
|#19||My Choosiest Choice of All|
In an attempt to make Elliot jealous and angry, J.D. gets back together with Danni (Tara Reid), who is a different person now that she's done being who she thought J.D. wanted her to be. Dr. Cox realizes he has a crush on Dr. Miller (Bellamy Young), and Jordan picks up on it immediately. Turk and Carla encourage the Janitor to accept his promotion to security guard, but he finds he dislikes having to play by Dr. Kelso's rules. Sean confronts J.D., who denies that anything happened between him and Elliot.
J.D. and Danni (Tara Reid) break up, as neither one really cared about the other; Sean and Elliot plan to move in together. Carla is anxious about the last-minute details for her wedding, now just a few weeks away. Dr. Cox bets Dr. Kelso that no healthy patients will sign up for the full-body MRI scans, not anticipating Mr. Corman the hypochondriac (Richard Kind) to return. J.D. finally admits his feelings to Elliot, causing her to break up with Sean (Scott Foley), only to realize his feelings were based on his coveting what he did not have.
Carla's brother Marco (Freddy Rodriguez) arrives for the wedding rehearsal and offers Turk advice in writing his own wedding vows, as Carla wanted. After asking Danni (Tara Reid) and her new partner for advice, J.D. resigns himself to a relationship with Elliot, even if he doesn't love her. Jordan insist that she and Dr. Cox stop fighting; frustrated and needing to fight with someone, he antagonizes the Janitor, much to his detriment. At the rehearsal, moved by Turk's improvised vows, J.D. finally admits to Elliot he doesn't love her. Features a cameo appearance by Larry Thomas (the Soup Nazi from the Seinfeld series).
|#23||My Best Friend's Wedding|
On the day of Turk and Carla's wedding, Turk is delayed in surgery, and is so late for the wedding, the ceremony is cancelled, but the reception is held regardless. Danni (Tara Reid) gets drunk and wreaks havoc. Guilty for having broken Elliot's heart, J.D. finds Sean (Scott Foley) and convinces him to take Elliot back. Before leaving for their honeymoon, Turk and Carla return to the hospital to check on a patient, who happens to be a priest, and ask him to marry them. Features a cameo appearance by George Takei.
Scrubs Season 3 Episode Guide Content licensed under the GNU Free Documentation License.