A woman slips and falls on the wet floor of the hospital. Afraid that she might sue the hospital, Dr. Kelso asks J.D. to stand by her and be friendly, so she won't sue them. But J.D. is very busy with Dr. Cox's 24-hour marathon to keep his ICU patients alive.

Elliot is desperate for some attention from Dr. Cox. Meanwhile, Turk snaps at Carla when she steals fries from his plate.

J.D. has a patient who's rude to him and the nurses and eventually dies from cancer. J.D. feels awful for not giving him his full attention and worries maybe he could have saved the guy if he was nicer to him.

Meanwhile, Elliot is convinced that Dr. Kelso is the one singing a song called "Tuscaloosa Heart" on a tape given to her by a patient who claims he went to college with Bob. And Dr. Cox finds himself trapped in a love square: He's falling in love with Kristen Murphy, his intern, just as his ex-wife reappears demanding sex – and there's also his crush on Carla.

J.D. fears being contaminated with Hepatitis B, after a needle accidentally sticks his forearm.

Meanwhile, Elliot has a hard time combining her new relationship and keeping up with studies. Turk obsesses about getting in shape, after Carla makes a fat joke about him.

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.

A personal secret of Dr. Cox is revealed during hospital visitations by a cocky MD (Jay Mohr), who establishes a rapport with J.D.

As J.D.'s relationship with Danni progresses, he and Dr. Cox are forced to spend more time together outside of the hospital, to Perry's great chagrin.

Meanwhile, as they each deal with problems in their own relationships, Carla and Elliot work to find their own balance between their personal and professional relationships.

Dr. Kelso accidentally punctures his eardrums giving the hospital staff an opportunity to tell him how they truly feel about him.

Turk has to confront a young patient of his, when he accidentally cuts a nerve and the boy (who happens to be a concert pianist) loses use of one of his hands.

Meanwhile, one of Elliot's patients unintentionally teaches her a lesson about her relationship with J.D.

Elliot starts showing J.D. up as the calmer, more competent doctor. A date with the Janitor leads to an a capella sing-off between his "group" and Ted's band.

Turk starts taking his diabetes more serious, when he realizes the dire consequences of the disease.

Dr. Kelso dons scrubs to prove a point to Dr. Cox, only to watch it backfire, when an obnoxious patient refuses to listen to him.

J.D. and Turk party, while Carla struggles to find solace in Elliot.

Dr. Kelso is outraged, when he discovers, that a bird has been living in Sacred Heart. He orders the Janitor to dispose of it immediately. However, the Janitor likes the bird so much, he secretly keeps it as a pet. Meanwhile, J.D., annoyed with Keith, tries to get his intern fired, but things don't turn out as intended.

J.D. urges Cox and his fellow doctors to do special, unconventional things for their patients, but J.D. himself is not sure he can shave his head for a woman undergoing chemotherapy, after meeting a woman who loves his hair. Meanwhile,Turk and Carla attempt to eliminate all the stress in their lives, to better their chances of conceiving. Also, Elliot can't stop giving her new boyfriend Keith stupid gifts.

After being convinced to go to Tacoma for Kim's first ultrasound, J.D., along with Carla, Elliot, Janitor, Keith and Ted, takes Kelso's new RV on a road trip. Meanwhile, Jordan and Dr. Cox have trouble when Jordan's ultrasound reveals that the baby will need surgery.

After a hard day of work, Dr. Cox has the burden to tell his son Jack a good night story, so he disguises his hard day as a fairy tale about the little village Sacred Heartlia with Carla and Turk as the two-headed witch Turla, Elliot as the princess and J.D. as the village idiot.

Other people featuring are the Janitor as the giant, Keith as the prince, Dr. Kelso as the dark lord Oslek, Ted as his hunchback and of course Dr. Cox as the brave knight.