On Tonight

A high school student plans a clandestine hookup with his female teacher but ends up in a far more sinister situation.

Benson is taken hostage when she tries to stop a violent home invasion

Members of firehouse 51 band together in a time of need

Friction from the brass above causes problems for everyone at Firehouse 51

A man gets a second chance for justice.

A young Army veteran disappears before her college graduation.

Memphis wife and mother Heather Jones embarks on a remarkable weight loss journey, and then disappears.

Internal affairs decides to shake things up with Voight as he’s also forced to work with a former partner during an investigation.

A case close to home when the intelligence unit takes on a gang shooting with one living witness, Olinsky’s daughter.

The intelligence unit works a case where millions of dollars are missing, men murdered and two dueling gangs are suspect.