Grey's Anatomy

Season 4

TV-14

67%82%

Enter a world of change in the irresistible and unforgettable fourth season of Grey's Anatomy. Love, lies, and family ties are revealed as the surgeons of Seattle Grace discover that their choices have major unintended consequences. And coupled with the arrival of some very eager new interns, life at the hospital sizzles with more emotion, excitement, and heartbreak than ever before.

Where to Watch Season 4

17 Episodes

A Change Is Gonna Come
E1
A Change Is Gonna ComeEntering their first year as residents, Meredith Grey, Cristina Yang, Izzie Stevens and Alex Karev now have interns of their own to mentor. Among the new interns are George, forced to repeat his internship after failing his exams, and Lexie Grey, Meredith's half-sister. Another two new interns will be introduced in this season premiere. And they'll have their hands full when a three-car accident sends multiple casualties pouring into Seattle Grace. Some of the doctors need to deal with new stressed out interns. A young boy brings his bleeding deer to the hospital in the hope a doctor will save her.
Love/Addiction
E2
Love/AddictionA patient is in the hospital because they fell asleep in a hazardous situation. A patient's home laboratory blew up in an apartment building and the victims flood the hospital. Alex investigates the cause of the incident by talking to a really old guy who lived in the building. Jane Burke shows up to deal with what her son left behind. Lexie tries to talk to Meredith. Callie is overwhelmed by her new position while Bailey is searching for things to do.
Let the Truth Sting
E3
Let the Truth StingThe doctors meet the world's oldest intern. Marcy brings in her son Henry because she finds his change in behavior suspicious. A patient named Connie may lose her vocal chords unless Mark and Richard can perform a radical new surgery. George impresses the other interns at work but at home he is trying to deal with his guilt about having sex with Izzie.
The Heart of the Matter
E4
The Heart of the MatterA face familiar to one of the year-twos shows up and dredges up issues that were never really dealt with. A teen soccer player needs counseling because of his father and surgery for an injury he sustained while playing the game. Another patient's, named Courtney, finds out that her cancer is back.
Haunt You Every Day
E5
Haunt You Every DayIt's Halloween at Seattle Grace! There may be jokes, pranks, and/or scare tactics. Some of the women form a club based on an experience they all share. A man volunteers for what most of the doctors believe is an unnecessary surgery. One of the patients is in the hospital because they tried to carve a pumpkin in an unconventional manner.
Kung Fu Fighting
E6
Kung Fu FightingA patient comes to the ER with a dream and a condition which may prevent him form realizing it. Two patients are competing to win something big. One of them convinces an intern to take their place.
Physical Attraction, Chemical Reaction
E7
Physical Attraction, Chemical ReactionIzzie and George's new-founded relationship results in them having bad sex. Callie's Chief Resident position is taken away from her, and Bailey is the humble replacement. Meredith can barely handle it with Lexie anymore.
Forever Young
E8
Forever YoungBailey crosses the line when the guy she had a crush on in high school shows up in the ER during an onslaught of high school students involved in a bus crash. The Grey sisters run and hide when their father shows up drunk, while Derek tries to get back into the dating scene with another doctor and Cristina tries her best to get back into Hahn's good graces.
Crash Into Me (1)
E9
Crash Into Me (1)An ambulance crash endangers the lives of the paramedics involved, as Meredith and the Chief work on-site to save them, Bailey treats a patient who refuses her help, and Ava returns for Alex and meets his other girlfriend in the process.
Crash Into Me (2)
E10
Crash Into Me (2)Meredith works furiously to save a paramedic trapped in an ambulance; Lexie holds the life of a patient in her hands; Derek must rely on a nurse to save a patient; Bailey struggles to balance her personal life with her work.
Lay Your Hands on Me
E11
Lay Your Hands on MeGeorge has a surprise visitor. Bailey's family is falling apart. Derek sorts through what kissing Rose means. Meredith discovers something that doesn't inspire hope or happiness in her. Alex treats a faith healer.
Where The Wild Things Are
E12
Where The Wild Things AreTime has passed but not much has changed. Sexual angst still runs rampant in the halls of Seattle Grace. Derek and Rose have been dating and Meredith has noticed the activities of her current off-again ex-boyfriend. The doctor's are in the midst of a competition.
Piece of My Heart
E13
Piece of My HeartAddison is not prepared for all the changes that greet her upon her return to Seattle Grace for a specialized surgery, Meredith and Derek begin their clinical trial, Izzie feels left out, and Karev is confronted with an unexpected announcement.
The Becoming
E14
The BecomingThe clinical trial continues to make progress. The anti-McSteamy club creates new initiatives but that isn't enough to stop one woman from spending time with him. Christina is affected by Burke's career developments.
Losing My Mind
E15
Losing My MindMeredith's therapist tries a different tactic in not allowing her to give up and quit her therapy, while Cristina's therapy consist of taking it out on everyone around her. In an effort to turn over a new leaf, Sloan's therapy consists of being loved for his mind instead of his body, while Bailey counsels her child for hitting other children in day care, and both Derek and the Chief are getting the cold shoulder from the ladies in their life.
Freedom (1)
E16
Freedom (1)A surgical team battles the clock as they try to save a boy encased in cement, Karev's situation with an ever-disintegrating Ava brings back painful memories that interfere with his judgment, Derek and Meredith have one last chance at their clinical trial.
Freedom (2)
E17
Freedom (2)Meredith and Derek are at odds over whether or not to continue with their 13th clinical trial patient and the doctors lift the final critical pieces of cement from the young boy's body. Meanwhile, Alex rushes Ava into the hospital and is forced to confront the reality of her condition.