After a deadly warehouse fire that left Olinsky's daughter fighting for her life, intelligence mobilizes to find the arsonist.

A hiker leads intelligence to a young woman being held captive in the woods outside Chicago.

Members of the military risk their lives every day and, in the muscular army world, she was a commander who cared. So news of her murder was met with pure shock.

Authorities work to establish why a loving mother was brutally stabbed to death in her home.

She was a free spirit in paradise. Then like footprints in the sand, she disappeared.

A man gets a second chance for justice.

Herrmann saves an infant in a blaze and the repercussions drive him on a search to uncover the truth.

The Chicago fire team works seamlessly with Chicago med personnel to help aid victims of a deadly gas leak.