Detectives investigate different homicide cases in inner-city Baltimore. Working for the police department, these detectives are committed to bringing justice to the streets of Baltimore.
Blood Ties - Part 1: A prominent businessman's housekeeper is found murdered at a banquet in his honour. (S6, ep 1)
Blood Ties - Part 2: Felix Wilson makes a shocking confession about his relationship with his deceased housekeeper. (S6, ep 2) Also in UHD.
Blood Ties - Part 3: Pembleton and Giardello reluctantly get search warrants to collect blood samples from Felix Wilson and his son. (S6, ep 3)
Lewis and Falsone, joined by Stivers, get the case of a woman almost beaten to death and left in an alley. (S6, ep 4)
New York detectives Briscoe and Curtis accompany Falsone and Munch to Baltimore as they look for the suspect in a teen model's death. (S6, ep 5) Also in UHD.
An armed robbery at a family Vietnamese restaurant leaves five dead, sparing only two teenagers in the kitchen who implicate an off-duty Baltimore cop. (S6, ep 6)
A man is pinned by a train in a subway station, producing a mortal wound that is temporarily suppressed by his situation. (S6, ep 7)
Gharty and Ballard suspect that a woman murdered her ex-boyfriend for infecting her with AIDS. (S6, ep 8)
Bayliss and Pembleton are forced to deal with their own prejudices as they search for a hustler suspected of killing rich gay men. (S6, ep 9)
Lewis and Falsone attempt to solve the whipping and hanging of a wealthy advertising executive. (S6, ep 10) Also in UHD.
A couple give the police information about a murder-suicide, while Ballard and Gharty go after a pair of suspects outside their jurisdiction. (S6, ep 11)
Something Sacred - Part 1: The stabbing death of a priest in his own rectory becomes a red ball, with Ballard and Gharty in charge. (S6, ep 12) Also in UHD.
Something Sacred - Part 2: Another priest is murdered after the two Guatemalan political refugees suspected of killing the first one are set free. (S6, ep 13) Also in UHD.
An angry driver cuts off a state-owned truck, is rammed from behind and rearends a parked semi. Result? Two deaths and a paralysed passenger. (S6, ep 14) Also in UHD.
Pembleton and Falsone investigate the mauling of an elderly man, in his own house, by three dogs belonging to his grandson. (S6, ep 15)
Pembleton and Bayliss investigate the death of a cancer patient when a relative insists the hospice doctor killed him in a 'mercy killing'. (S6, ep 16)
When a 4-year-old boy disappears from a carousel, Falsone and Stivers catch the case and are joined by the entire homicide unit. (S6, ep 17)
Munch and Gharty investigate a high-school basketball player's murder. (S6, ep 18)
Ballard and Gharty probe the case of single women who are strangled after they're picked up at fancy bars and subdued with a stun gun. (S6, ep 19)
Two business executives who belonged to the same country club kill themselves when they're given incriminating photos of themselves. (S6, ep 20)
Bayliss is still having nightmares about the Adena Watson case, so Gee is reluctant to assign the case of another girl, murdered in 1932, to him. (S6, ep 21)
Fallen Heroes - Part 1: Bayliss and Pembleton are handed 'the mother of all red-balls', the stabbing of a judge on the sidewalk in broad daylight. (S6, ep 22)
Fallen Heroes - Part 2: The Homicide Unit takes down the remaining Mahoney organisation, but not without collateral damage. (S6, ep 23)