Charlie meets his mathematical equivalent when LOTTERY AGENT JANE assists in the investigation into a complex scam that involves thefts of unsold lottery tickets.

Jenna tries to communicate with a distant Matty; Tamara questions Jake’s talent for music.

The detectives investigate the gang rape of a college student during a fraternity Holloween party.

Carter plays tour guide for Ruth Johnson, who was born in the hospital 100 years ago to the day, and her large family. Carol treats a boy who was hit…

Carter and Lucy scramble across Chicago to find a dying girl’s father who’s a perfect match for her very rare blood type. Benton operates without transfusions to save the little…

Dr. Corday commits a deadly error after being on-call for nearly 36 hours straight. Peter visits Dr. Kotlowitz and receives encouragement regarding a cochlear implant for Reese. Dr. Amanda Lee,…

Chen’s patient refuses to reveal to his daughter that she might have inherited a terrible disease from him. Weaver defies Romano’s authority and performs a procedure that gets her suspended….

Carter and Lucy are discovered and the staff struggles to save them and go on with normal patient care.

Lucy’s patient finally gets a heart transplant but does not survive. The transplanted heart will now go to another recipient. Greene interferes in a gay domestic situation. Corday tricked her…

Kovac and Haleh take care of Hathaway’s twins so the new mother can finally get some rest. The job transfer for Carla’s husband does not get approved allowing Reese to…

After his mother’s funeral, Dr. Greene comforts his father (JOHN CULLUM) in San Diego. In Chicago, Romano surprises Corday by appointing her associate chief of surgery. Corday treats Elaine, Carter’s…

When Anspaugh decides to retire as chief of staff and return to surgery, he appoints Romano as his replacement. Greene expresses reservations about the decision, but Weaver does not support…

While examining a young boy, Pratt finds a suspicious gash across his chest and calls Wendall (recurring guest star MäDCHEN AMICK) for a consult. Kovac and Pratt examine a man…

On Thanksgiving Day, a helicopter crash outside the ER leaves several injured, and kills Dr. Romano. Alex tries to bring Sam and Luka together.

Abby fears the worst when her brother Eric suddenly disappears. Carter and Chen treat a frightened Chinese immigrant nanny, Tong-Yi, whom they suspect was impregnated by her employer. Meanwhile, new…

Anspaugh is furious when Carter tells him he wants to quit surgery. Charlie is brought in with an overdose. Mark keeps struggling with his beating.

Benton takes a day off to help Carla. Carter finds out Edson falsified a chart.

Benton tries to find out if everything’s OK with Carla’s baby. Carter tries to get a man operated, despite the fact Anspaugh thinks he will die no matter what.

Carol has to fire two of the nurses. Meanwhile, Gant feels Benton is too hard on him.

Encouraged by Carol, Mark finally asks Susan out. Benton tries to save a boy, despite the fact Doug thinks he’s brain dead.

While on their helicopter flight rotation, Mark and Susan find an injured family of four who they bring to the ER.

An accidental overdose brings Drs. Green and Corday’s baby into the ER.

A new medical student, Michael Gallant, arrives in the ER. He’s supposed to be working under Dr. Carter’s supervision but his grandmother is unwell. Elizabeth Corday is convinced that other…

Weaver returns to the emergency room after a self-imposed sabbatical of three weeks, wondering how her newfound lesbian identity will affect her workplace relationships. Having purposely allowed a mass murderer…

Ross and Hathaway’s jobs are in jeopardy after their unauthorized treatment of a drug-addicted 7-month-old boy is discovered. Corday loses her sponsorship. Carter suspects Del Amico’s boyfriend when drugs are…

Carter finally works up enough nerve to ask Del Amico out. Jeanie tries to help Scotty decide whether to undergo an experimental treatment and Benton takes unexpected action during an…

Because of benzene that’s been spread, the ER has to close. Weaver gets felled and Carter has to take the lead.

Mark treats an old lady who has been brutally raped. Carter’s grandmother visits Carol’s clinic. After he’s touched by Benton, a blind man can see again!

Quentin and Penny embark on a quest. Margo works on a way to help Eliot. Julia seeks an old friend’s help.

Agent Stahl (Ally Walker) takes notice at the handsome profits SAMCRO is reaping from the repo business. Meanwhile, the Jax- Clay standoff forces Gemma to make a difficult decision.

Extreme measures are taken by SAMCRO to get a hold of weapons for a customer. A theft at Caracara Studios means revenge after one diva is put at risk. Tara’s…

Dougie’s loved ones care for him in the hospital, and Mr. C heads towards the coordinates. Meanwhile, Diane makes a confession to the FBI.

Ben Horne asks Cooper for help in rescuing Audrey, and Donna uncovers a significant piece of evidence at Harold Smith’s home.