Kyle Chambers

Dr Greene grows suspicious of the new ER chief, Dr Lee, after spending time with her; Dr Carter worries that he may have contracted tuberculosis from a patient.

Dr Greene makes a decision on whether or not to join the NASA mission. Meanwhile, Dr Ross breaks the terms of a study to give an unauthorised drug sample to a patient.

After the accident, Dr Ross struggles to make a decision for his professional future. Meanwhile, Mobalage's wife shares a dangerous secret with Hathaway.

Dr Weaver and Dr Anspaugh learn the truth about the treatment Dr Ross was giving to Joi's son. Meanwhile, Dr Benton starts to learn sign language.