Colin Bain

The team probes the death of a sailor found clutching an officer's sword and discovers he was obsessed with a role-playing game.

When J.D. (Zach Braff) must address a bunch of pre-med students about what it's like to be a doctor, he strays off the beaten path and chooses to discuss his best moments as a doctor instead. When he challenges the rest of the staff to do so, they all reminisce about their fondest memories in the medical field. Meanwhile, Elliot (Sarah Chalke) is forced to face her fear of children when she must befriend a ten-year-old boy, whose father is being treated in the I.C.U. Elsewhere, Dr. Kelso (Ken Jenkins) gets a dose of Christmas spirit and stuns the staff with his change of heart. Donald Faison, John C. McGinley, Judy Reyes and Neil Flynn also star.

Lilly reopens the case of a young woman found murdered in her lover's apartment after the victim's brother gathers more information and finds more than one suspect.

Harm and Mac find themselves on opposing sides when a Navy psychiatrist is charged with sending a soldier, suffering from combat stress, back into battle too soon.

As July Fourth dawns, the cell prepares to launch two coordinated dirty bomb attacks on the city of Los Angeles, while Darwyn and the FBI move to shut them down.