Detectives feel a woman is withholding information when they probe the murder of her wealthy husband and very young daughter.
Medavoy comforts wounded Abby after a deadly assault; Gina has pregnancy complications; a young woman's charred body is found in a vehicle.
The escalating situation in North Korea puts Mac's leadership to the test as the country faces the possibility of nuclear war.
Luke, wanting to get to know his newly discovered daughter, goes to talk with the girl's mother (Sherilyn Fenn); Lorelei finds her dress and sets a date but has a feeling that something is about to go wrong.
Tony is embarrassed, then enraged, as a publicity-seeking "video vigilante" metes out even more bizarre and harsh punishment to offenders.