A little boy named Antonio is caught in the cross fire of a shotting, and saw the attacker, who he called the Ghost. After testing the bullets that came from the scene of the shooting, Benson and Stabler find that they are a match to another shooting. The attempted murder of ADA Alex Cabot. They are able to indentify the person behind the shootings, but are forced to drop the charges because the people failed to meet their deadline. Casey Novak then brings the attempted murder charges of Alex Cabot up against the suspect, and Alex is forced to come back to New York to finally put the Ghost behind her.
This is a great epsiode. It was nice to finally see Alex Cabot again. She is one of my favorite characters, and I was sad to see her go in Season 5. It was very entertaining to see the old ADA and the new ADA working alongside each other.