After a year long absence, Dr. A.J. Aquino returns to Denver Memorial, but before he can rejoin the staff, the Chief insists that he make peace with Dr. Bandari. Emily is tasked with treating a patient who claims to be a psychic, and is convinced that her tarot cards predict her own impending death. Elsewhere, Cassandra and Dr. Bandari treat a patient who needs a lung transplant, but Micah’s discovery of a new medical issue leaves the patient with a tough decision. Meanwhile, Emily decides to test her theory that Will was jealous of her recent date, so Tyra offers to teach Emily how to flirt.

When Emily, Will and Cassandra compete against each other to be Dr. Bandari's research assistant, feelings get hurt when they have to describe each other's flaws. Emily is determined to solve the medical mystery of a young patient whose x-rays reveals a bullet lodged in his lung, but who has no signs of a gunshot wound or scar. Meanwhile, Emily comes to a revelation about her personal life after diagnosing a daredevil with a rare disease that forces him to change his entire life.

When the hospital is inundated with bus crash victims during a winter storm, Emily is assigned to run triage in the E.R. During the chaos, Emily is forced to do an emergency skull procedure on a heroic Marine who suddenly collapses. Tyra bristles at her father’s lack of respect for her as a doctor, but they later experiences a breakthrough when they perform an emergency c-section together. Meanwhile, Will and Emily secretly work to help an unexpected patient leaving Cassandra to question Will’s true feelings for Emily. Micah finally makes a bold decision in his personal life.