Henry tries to fight for a legislation to provide better mental health care for veterans, but receives pushback from a surprising source.
The Machine's latest number presents a unique challenge for Reese and Finch since the person has virtually no digital footprint and appears to be leading a double life.
Rollins's future hangs in the balance when an attack on her sister forces her to take deadly action.
Horatio and the team try to get inside the mind of a sniper after three people are shot and killed in downtown Miami.
When the old partner of Eames's husband is killed, the investigation sheds new light on her husband's murder.