S2E25 - 17 Seconds

S3E2 - I Am a Tree

The staff deal with a boy, who literally has become a tree; a patient who vocalizes all his thoughts aloud, no matter how rude; and a lung cancer patient, who ends up having sex with Alex in Joe's restrooms. Meanwhile, the Nazi is back with a vengeance from recent events, Burke's mother catches Cristina offering a new hospital service, Callie covers for Meredith, Izzie starts baking out of grief and Derek and Addison find their marriage is over.

S3E1 - Time Has Come Today

Addison and Alex treat an abandoned baby, George and Derek are sealed off from the rest of the hospital (possibly with plague), Izzie mourns for Denny, Meredith tries to choose between Derek and Finn, Callie and Cristina try to help Izzie, Bailey helps a distressed patient and many of the doctors have flashbacks from their past.

S2E27 - Losing My Religion

Season 2 Finale!! Richard is determined to discover the guilty party, and punishes the interns by making them arrange a prom for his niece. Meanwhile, Callie presses George about his feelings, and Derek and Meredith have to make a decision about Doc.

S2E26 - Deterioration of the Fight or Flight Response

Cristina gets assigned to a trauma all by herself. Izzie and George wait for Burke to arrive and help Denny get the heart, but they do not realize that Burke has been shot and has to undergo surgery. Meanwhile, the Chief's niece Camille has been admitted to the hospital.

S2E25 - 17 Seconds

The victims of a workplace shooting are admitted. Izzie puts her job on the line to ensure Denny gets a new heart, Callie makes an effort with Meredith, and Addison is suspicious of Derek. TW: gun violence