Matt McTighe

The race for the Chief's position is on, as the doctors compete for Richard's affections, a surgical patient endangers the lives of those around her, and Meredith's Alzheimer's-stricken mother, Ellis, experiences a change in her medical condition.

When a gang of suspected murderers begins targeting a new victim each night, the BAU travels to Portland to head them off before they can strike again.

When Lisbon and Jane look into the murder of an army medic who helps rehabilitate veterans who have suffered mental injuries, their primary witness suffers from severe amnesia.

Kate Beckett's investigation into her mother's death is reactivated when Hal Lockwood - a hitman with knowledge of Beckett's mother's murder - stages a spectacular escape during a court hearing.

Criminals start to fall victim to a series of brutal murders. Whilst investigating, it appears to Nick that the culprit may be a character from a Latino legend, on a vigilante killing spree.

The Five-0 helps a private investigator in the case of a kidnapped woman whose husband may have something to hide, and Rachel tells Danny that she is getting a divorce from Stan.