Chicago Fire

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: (l-r) Joe Minoso as Joe Cruz, Taylor Kinney as Kelly Severide -- (Photo by: Elizabeth Morris/NBC)

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: (l-r) Joe Minoso as Joe Cruz, Christian Stolte as Mouch, Miranda Rae Mayo as Stella Kidd, Taylor Kinney as Kelly Severide, Jesse Spencer as Matthew Casey -- (Photo by: Elizabeth Morris/NBC)

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: David Eigenberg as Christopher Herrmann -- (Photo by: Elizabeth Morris/NBC)

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: (l-r) Taylor Kinney as Kelly Severide, Christian Stolte as Mouch, Jesse Spencer as Matthew Casey, Miranda Rae Mayo as Stella Kidd -- (Photo by: Elizabeth Morris/NBC)

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Elizabeth Morris/NBC)

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: Eamonn Walker as Battalion Chief Wallace Boden -- (Photo by: Elizabeth Morris/NBC)

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: Eamonn Walker as Battalion Chief Wallace Boden -- (Photo by: Elizabeth Morris/NBC)

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Annie Ilonzeh as Emily Foster -- (Photo by: Elizabeth Morris/NBC)

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: (l-r) Kara Killmer as Sylvie Brett, Annie Ilonzeh as Emily Foster -- (Photo by: Elizabeth Morris/NBC)

CHICAGO FIRE -- "The Solution to Everything" Episode 708 -- Pictured: Annie Ilonzeh as Emily Foster -- (Photo by: Elizabeth Morris/NBC)