Ep 5. Loose Lips

When Frank Reagan's office is alerted of a possible terror attack on the city, the whole family is put on alert. However, when a young girl comes forward with information about the suspected attack, things get complicated. Meanwhile, Erin Reagan reopens an old case of her father's, and uncovers a potential cover-up. Finally, Danny Reagan is caught in the middle of a gang war when a witness won't cooperate with the police. With so many loose ends to tie up, the Reagan family must work together to keep their city safe.