Lauren Kelly

Danny is faced with a moral dilemma, when a gun linked to a robbery is brought into the NYPD's gun buyback program. He must decide whether to arrest the suspect or adopt the "no questions asked" rule.

A gunman invades a family's home, killing the parents and leaving their daughter in a critical condition. As the team struggle to find a motive for this violent crime, the clues lead to a surprising revelation that may just threaten Rollins' career.

When a shoot-out leaves two patrol officers and an 18-year-old boy dead, the Force Investigation Division becomes involved with the case.

A top surgeon who has to operate on the president is held hostage with her family by a rogue FBI agent who demands that she kill the President or else he'll kill her family.

When Ellen disobeys Duncan's orders to assassinate the president during surgery, he tells her it will cost her a family member's life.

Ellen and Brian decide they won't be able to escape until they've taken Duncan down and freed themselves from his clutches.