Boden correctly suspects he is being set up. It is later revealed that Roger Maddox, who is under investigation for arson, paid Serena to frame Boden to discredit him as a witness.
Amidst the personal drama, the team responds to unique rescues, including an individual impaled in a glass window. "Chicago Fire" Sharp Elbows (TV Episode 2015) - IMDb [S4E7] Sharp Elbows
Kelly Severide continues to deal with the fallout of his demotion and ongoing friction with Captain Dallas Patterson. Boden correctly suspects he is being set up
The episode culminates at the Chicago Fire Department gala, where the team attempts to find a moment of normalcy despite the looming threats to their station. who is under investigation for arson