Dr. Ross stumbles across an injured boy trapped in a storm drain and his heroic efforts are caught on tape by a local news team.
Meredith's dishonesty is revealed, leading to unexpected consequences for her and others; the new chief resident is chosen.
The CSIs have 24 hours to find out if a man on death row is truly guilty, and Eric Delko returns to work the case.
Nash is forced to stop a world-renowned hit-man who turns out to be one of his closest boyhood friends.
Mark comes to the defense of his schizophrenic former student, who can't explain his alibi after being charged with murder.
