With Keeler’s whereabouts unknown, the men of Firehouse 51 are looked at as prime suspects,

A Chicago civilian’s heroic action hits the Firehouse in more ways than expected.

A series of rapes, each more violent than the previous, takes place in a tight-knit community.

When a well-known doctor is killed, Detectives Benson and Stabler question the doctor's estranged and troubled son.

Intelligence becomes embroiled in a violent robbery case that put Halstead in the line of fire.

The team finds themselves looking into a kidnapping at a hidden shelter for women.

A man and his son are shot to death, tearing their family apart.

A woman's death while hiking in the Rockies was initially ruled an accident