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 … 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 long-standing conflict between Danny and Jamie comes to a head, on the second season finale of BLUE BLOODS, Friday, May 11 (10:00-11:00 PM, ET/PT) on the CBS Television Network.

Airdate: 05/11/2012