Chicago Fire

CHICAGO FIRE -- "Viral" Episode 116 -- Pictured: Taylor Kinney as Kelly Severide -- (Photo by: Matt Dinerstein/NBC)

CHICAGO FIRE -- "Viral" Episode 116 -- Pictured: (l-r) Shane McRae as Eric Whaley, Eamonn Walker as Battalion Chief Wallace Boden, Taylor Kinney as Kelly Severide, Jesse Spencer as Matthew Casey -- (Photo by: Matt Dinerstein/NBC)

CHICAGO FIRE -- "Viral" Episode 116 -- Pictured: Kelli Barrett as Renee Whaley, Taylor Kinney as Kelly Severide -- (Photo by: Matt Dinerstein/NBC)

CHICAGO FIRE -- "Viral" Episode 116 -- Pictured: (l-r) Eamonn Walker as Battalion Chief Wallace Boden, Taylor Kinney as Kelly Severide, Jesse Spencer as Matthew Casey -- (Photo by: Matt Dinerstein/NBC)

CHICAGO FIRE -- "Viral" Episode 116 -- Pictured: Jesse Spencer as Matthew Casey -- (Photo by: Matt Dinerstein/NBC)

CHICAGO FIRE -- "Viral" Episode 116 -- Pictured: (l-r) Monica Raymund as Gabriella Dawson, Lauren German as Leslie Shay -- (Photo by: Matt Dinerstein/NBC)

CHICAGO FIRE -- "Viral" Episode 116 -- Pictured: (l-r) Monica Raymund as Gabriella Dawson, Lauren German as Leslie Shay -- (Photo by: Matt Dinerstein/NBC)

CHICAGO FIRE -- "Viral" Episode 116 -- Pictured: (l-r) Pouch, Taylor Kinney as Kelly Severide -- (Photo by: Matt Dinerstein/NBC)

CHICAGO FIRE -- "Viral" Episode 116 -- Pictured: Shane McRae as Eric Whaley -- (Photo by: Matt Dinerstein/NBC)