A woman with cystic fibrosis needs new lungs; an ER nurse makes a startling personal decision after hearing an elderly couple's story about their 65-year marriage; surgical residents share tales of hazing by senior surgeons.

An undocumented immigrant turned trauma surgeon treats a male who has been ingesting metallic objects. An old-school surgeon makes up for his lack of bedside manner with his skills in the operating room. A pediatric surgeon discusses the complicated and dangerous procedure of removing a tumor from the heart of a 4 year old girl.

A veteran of the Gulf War patiently waits for a donor heart. A serious of violent crimes keeps a surgical resident busy on a Friday night. Dr. Mehmet Oz preps for a colonoscopy, but isn't too busy to quiz his colleagues about their dietary habits.

A single mother with breast cancer finds out if her disease has spread; a surgical resident gets marital advice from a colleague; a first-year emergency-medicine resident's even temper helps him deal with inebriated patients and treat a woman that was in a car accident, but his self-control abandons him during a prank by his coworkers.

A collegiate swimmer whose arm was injured in a car accident requires a delicate surgery; a trauma surgeon counsels the family of a man who was run over by a car; a pediatric surgeon operates on a newborn; an ER doctor treats a woman with a life-threatening condition and is serenaded by a patient who needs stitches in his hand.

In the season finale, a banker and mother undergoes a risky cancer operation known as ex vivo; a cardiac surgeon realizes the unpredictability of a career in medicine; and an ER nurse is wooed by a dwarf stripper who was hurt while performing at a party, and whose cheating ex's best friend is a patient with a leg injury.

In the Season 2 premiere, Dr. Mehmet Oz discusses a man's chest pains; a man tells his wife about a tumor on his spine; a urology resident meets with patients; and ER nurses treat a woman's bizarre injury at New York-Presbyterian Hospital. Meanwhile, a trauma surgeon examines a man with multiple gunshot wounds at University Hospital in Newark, N.J.

An ER doctor treats a couple who were the victims of a violent home invasion; a former Wall Street banker reflects on changing her career to medicine; a Marine recalls his service and describes his deteriorating physical condition.

A doctor treats a student pilot whose instructor was killed in a plane crash; a urology resident discusses a surgical procedure with a patient; a cardiac surgeon thinks he can help a woman with a tumor on her heart. Also: Dr. Mehmet Oz investigates a police officer's mysterious stroke that he suffered on vacation with his family.

A nurse becomes a patient after inexplicably losing consciousness; a man who's about to be married gets alarming news from a cardiac surgeon; a trauma surgeon treats a man who was beaten with a hammer; a neurosurgeon tells a homeless man he needs surgery to repair damaged vertebrae in his neck

A man with a blood clot in his lungs is treated by an ER doctor, who later helps security guards subdue a violent patient. Elsewhere, a woman in need of a kidney transplant gets surprising news; a cardiac surgeon makes a promise to woman about to undergo heart surgery; and an ER doctor discusses a personal struggle.

A 2-year-old needs surgery to alter the flow of blood to her brain; an ER resident confronts police officers who are bothering one of her patients; a trauma surgeon discusses the high number of young males who are brought in with bullet wounds; a charismatic surgical resident impresses his patients and his superiors.

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A man with a liver disease needs a transplant and hopes to live long enough for his daughter's wedding; a trauma surgeon finds his groove in New York after leaving New Orleans in the aftermath of Hurricane Katrina; ER nurses deal with demanding patients, including an intoxicated man who has to be subdued by security guards.

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In the premiere of an eight-part documentary series following the staff and patients at New York-Presbyterian Hospital, Dr. Mehmet Oz arranges a reunion between a patient and his ex-wife. Meanwhile, a woman with a brain tumor undergoes a risky surgery; an ER nurse fields romantic overtures from the people she treats; and two residents bond over their differences from their colleagues.