After a robbery gone wrong ends with a murder and kidnapping, the team races to rescue a mother and daughter whose abductors are not what they seem; Crosby enters into a new living arrangement.
Danny and Baez investigate after a vicious attack leaves their mutual friend, Maggie Gibson, hospitalized; Frank and the team debate the appropriate memorial protocol for a former police commissioner with a questionable professional legacy.
Elizabeth and her team work to secure the release of an American journalist who is being held hostage in the Sudan.