Greene's attempts at balancing his work and family after moving to Milwaukee comes to an abrupt end when his wife is caught cheating on him with a colleague, the divorce becomes final and he starts dating again. At work, he is promoted, becoming an attending physician. He locks horns with close friend Dr. Doug Ross, whose reckless professional behavior is called into question by the hospital authorities, and new Chief Resident, Dr. Kerry Weaver. Ross breaks protocol to treat an HIV-positive child and is about to be fired. He has already accepted a job at another medical facility when he heroically saves a child, trapped in a sewer in the landmark episode "Hell and High Water". His heroism creates a media sensation and the hospital reconsiders its decision when Dr. Ross receives an award for outstanding community service. Later in the season, his father returns, and while attempting to bond his father again walks out on him. While tracking him down Doug becomes embroiled in a relationship with his father's girlfriend.