"Insult to Injury" — When Danny takes a call from a woman who is threatening to kill herself along with the man who killed her parents in a drunk driving accident, he rushes to find her. Meanwhile, Frank accompanies his grandson, Sean, on a class field trip and struggles to get the lead chaperone to loosen the reigns so the kids can have fun, on BLUE BLOODS, Friday, March 7 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Pictured: Tom Selleck as Frank Reagan.