Alex and Shahir operate on a patient who drilled his own head. Maggie suspects Dana's daughter is stealing painkillers. Meanwhile, Joel sleeps with Selena.

News of Alex's pregnancy and the mystery of who the father is circles the hospital. Joel returns after his quick incarceration. Maggie studies for the board exam and deals with a patient who has a fear of doctors. Meanwhile, Alex and Dawn continue to deal with their patients in need of a heart donor.