Frank takes heat when a widow blames him for her husband's recent suicide while on the job. Also, when Eddie has a gut feeling about a murder, she and Erin band together to solve the case, and a desperate Luis Delgado tells Danny and Baez that the only way he'll testify against his former cartel is if they protect his sons.
Elenco: Tom Selleck , Donnie Wahlberg , Bridget Moynahan , Will Estes , Len Cariou , Sami Gayle , Marisa Ramirez , Abigail Hawk , Vanessa Ray , Gregory Jbara , Robert Clohessy , Andrew Terraciano , Amy Carlson , Jennifer Esposito , Steve Schirripa .