Liza J. Bennett

When a woman claims that the baby she kidnapped is hers with a respected legal expert, the investigation changes the lives of two families.

The city prepares for a tornado; Brett is forced to go to Boden about Chili's erratic behavior; Otis asks Dawson for help with his women trouble; the Department of Homeland Security asks Severide for assistance with a suspicious home.

News of a mass shooting brings the members of Firehouse 51 into harrowing territory; Casey investigates the missing money from the fundraiser; Jimmy participates in a boxing match; Chili's erratic behavior continues to be a major issue for Brett.

Herrmann is tormented by a difficult decision; Casey is thrown into the spotlight at a fundraiser; Dawson and Brett are faced with the repercussions of their actions; Severide helps with a case regarding homemade explosives; Otis is surprised.