Episode list

A new male doctor, Dr. West begins his first day at Rittenhouse; a train derailment fills the ER with patients; Lu is unsure about marrying Jonas.

Dylan treats a woman suffering from heroin addiction; Lu treats a little girl who has a rare medical condition that doesn't allow her to feel pain.

Lu becomes personally involved when her patient's 11-year-old son is tased with a stun gun at school; Dylan treats a patient with a rare form of multiple sclerosis; Kayla suspects that a patient of hers was exposed to ricin.

When a mother's two children are suffering from kidney failure, she has to make a choice about which child to donate a kidney to; Dylan's college mentor ends up being hospitalized for a debilitating neurological disorder.

When two teenagers are diagnosed with Legionnaires' disease, Dylan tries to find out how they contracted the disease; while volunteering at a women's prison, Lu fights to get adequate health care for the prisoners.

Dylan discovers a teenage female football player is using steroids; paternity issues arise when a mother discovers that one of her twins has cystic fibrosis.

After his old summer crush is hospitalized, Dylan believes that he is the father of her teenage daughter; Lu helps out the family of a brain-dead patient make some difficult decisions.

Dylan's new girlfriend faces a health scare when she is hospitalized for symptoms of avian flu; Lu helps out a mother whose overweight daughter is removed from her custody.

Lu and Jonas get married; after Araya gets herself into trouble, Dylan finds himself a hostage in a courtroom by a disgruntled man.

Lu and Jonas' honeymoon is cut short when Lu brings a group of orphaned children from Costa Rica to Rittenhouse for medical treatment, but Jonas finds himself being charged with embezzlement; Kayla suspects a mother of making her son sick.

Lu helps out a teenage girl who wants to get out of the gang life; Dylan fights to get a young woman with Down Syndrome a heart transplant.

Dylan treats a governor who is in poor health and Lu seeks her help to prevent a mentally impaired inmate from being executed; Peter forms a boot camp for young fathers.

Lu fears that her unborn child might have a fatal genetic condition and defends a pregnant mother who is accused of welfare fraud.

Kayla competes with a fellow male colleague to get the job of chief resident; Lu deals with a teenaged patient who wants to be emancipated so she doesn't have to donate a kidney to her sister.

Dylan helps out a woman who underwent a mastectomy whose insurance company wants her to be released from the hospital 24 hours after her surgery; Lu finds herself caught in the middle of a woman with cerebral palsy who sues her mother for negligence.

Kayla searches for answers after a teenage boy dies of heart failure; two patients in a burn ward provide emotional support to each other.

Dylan treats a woman suffering from cervical cancer; Lu decides to proceed with an alternative treatment for a young girl with a serious medical condition whose insurance company won't cover treatment.

Lu tries to help injured single mom, Melissa Nauls, who's addicted to Crystal Meth keep custody of her three kids. But when Melissa dies after going back to a crystal meth lab Lu has to find a way to keep all three kids together as Christmas approaches. Meanwhile, Kayla is attracted to blind patient Will Manning which makes Peter very jealous.

When Kayla's twin sister, Keisha comes to visit, it is revealed that Keisha is mentally ill; Lu helps a patient with fertility issues.

Kayla loses a patient who was a bank robber, only for his unstable girlfriend Jamie to show up at the hospital with a bomb strapped to her body. Meanwhile, 35-week pregnant Sirena Adkins is brought in suffering from meningitis and her mom tells Lu to only save the daughter and not the baby.

Lu and Dylan face an ethical dilemma when it comes to using an experimental drug on a patient with Parkinson's disease; Lu treats a deaf woman who was injured in an accident; Kayla treats patients from a circus suffering from tuberculosis.

While visiting Jonas' childhood home, an explosion occurs in the basement which causes Lu to go into labor and Jonas is forced to perform a c-section to save her life.