Trying to close the Wayne murder case, a young Harvey Dent and Gordon team up, much to Mayor James’ chagrin. Meanwhile, Penguin makes contact with Mooney’s secret weapon, Liza.

Greene assists paramedics in treating injured children at a school bus accident. En route, Doug and Jeanie survive their own accident. Kerry stops Doug from treating Jeanie…or any other patient….

Chuck, Sarah and Casey learn about a man called “Perseus” who is behind Fulcrum’s plans to build their own Intersect. While Sarah and Casey are sent to find Perseus, Chuck…

Cristina and Meredith’s surgical skills are put to the ultimate test.

A gunman opens fire at a local college, sending mass casualties to the hospital; Arizona’s return is not warmly received.

Nancy confronts an old friend, leaving Silas caught in the crossfire; back at the loft, Andy comes up with a new business venture, and turns to Shane and Doug for…

Nancy, Andy and Silas strike back at Emma; Doug has to keep his hedge fund up and running; Shane ends up closer to the law.

In an attempt to further expand her business, Nancy follows Doug and Andy to the Hamptons for the weekend; Silas tries to win Emma back after a falling out over…