Dan Ziskie

When a woman and her newborn child are found murdered, a trail of events is set in motion that leads the detectives to hunt a serial paedophile.

The team investigate the suicide of an officer and Ducky insists the woman, who was institutionalised for a nervous breakdown, was actually killed. Before her death, her therapist strongly disagreed with the woman's claims that she was attacked.

Nate disappoints Blair on her birthday; Dan takes Vanessa to Blair's birthday party so she can have some bonding time with Serena; Jenny brings her mother home for a surprise visit; Nate's parents ask him to make a big sacrifice.

Things don't go as expected when Betty meets Matt's mother (Christine Baranski); the Suarez family secretly tries to set Hilda up with Archie (Ralph Macchio).

Jack takes his fight directly to the President, as he attempts to force a confession from him that will prove his involvement in the day's events.

Eugene's ex-wife blames the influence of his career when their son is caught in possession of drugs; Jimmy goes after a gun manufacturer for a teen's death.