January 7, 2013
Returns 10 p.m., Wednesday Jan. 2
After ignoring his injury all season long, Severide (Taylor Kinney) is forced to face the consequences and tell Chief Boden about how dire his situation has become. Given the title of the episode -- "Under the Knife" -- we're guessing that it's time Severide gets his surgery, which will take him out of commission for an extended period of time. Meanwhile, Casey (Jesse Spencer) deals with some problems at home and Dawson (Monica Raymund) makes a tough choice when she finds a young girl, who is the sole survivor of a terrible accident.