Chicago Fire Season 15 Episode 4 follows arson and kidnapping investigation

In the fourth episode of season 15, titled ‘A Perfect Arson’, the FBI recruits Kelly Severide to investigate a fire at Judge Scanlon’s home. The arson appears to be a staged event intended to cover the kidnapping of the judge’s five-year-old daughter, Kaley Scanlon.

During the investigation, it is determined that the fire was a well-planned attack. The babysitter, who was watching the child while the judge and his wife were at the opera, was killed during the incident to remove the child’s primary line of defense.

Stella Kidd assists in the investigation, utilizing her instincts and knowledge of the responding fire station to support Severide as they navigate the case.