Louis takes out his frustration on Harold when a rival lawyer starts poaching the firm's best people.
A mysterious girl gets one past Jake and Mal; Des feels a connection to the case; Jake and Leslie get a surprise.
Shadowhunters and Downworlders regroup after Valentine's attack to battle a greater demon that's loose in Manhattan. Izzy meets a mysterious stranger, and Simon comes to terms with his new Daylighter status.
The Shadowhunters are faced with the possibility of a Downworlder uprising, while Valentine and Magnus attempt to break out of prison.
