Larry Clarke

Meredith's fears that she is in for a bad day are realized when a medical case arrives at Seattle Grace that threatens the lives of everyone in the O.R.

In Providence, a serial killer apparently murdered three people at random. The perpetrator has no specific victim type, but always strikes in crowded places and uses a knife as a murder weapon.

Violet files for joint custody of Lucas, but Pete hires an attorney and fights back, dragging everyone at the practice into the trial.

Dr. House and the team treat an uncooperative homeless woman whose worsening symptoms and unknown identity prove to be a complex mystery.

Cooper and Janey-E are in for a violent surprise at the Lucky 7 office. Meanwhile, Gordon and Albert try enlisting Diane to figure out the mystery of the man they believe to be Cooper in jail.

When the corpse of a man is found inside a tomb from the Civil War, the team discover that the victim was a sergeant buried alive. Elsewhere, Gibbs finds out that Ziva is now a full-time NCIS agent.