Luke hires Jessica to help him find someone who may have skipped town, but she fears he’ll learn too much about her history in the process.

As summer draws to an end, Blair and Chuck continue to adjust to being in a relationship with one another. Serena returns from Europe with new secrets to hide and…

A woman recants a domestic-abuse claim, but Danny and Jackie continue to investigate the situation. Soon they uncover the woman’s secret affair with a powerful politician who’s friends with Frank….

Frank must race to stop a biological weapon attack on New York City, while keeping it a secret from his family during their most sentimental holiday, Mother’s Day. Meanwhile, a…

When Erin’s informant is murdered, she blames herself and works to help Danny discover who killed him.

Frank is put on the spot when a supporter for the mayor is found dead and the mayor wants Frank to position it as a random act of violence to…

Danny and Jackie investigate the cut-throat world of fashion after Linda’s runway model niece and a reporter are poisoned at a fashion show.