On the season finale, Boden pursues a significant promotion, creating conflict with Grissom; Kidd grows suspicious of Renee's motives with Severide; Dawson and Casey can't find common ground.

Boden's chances for a promotion are met with potential complications, leading him to take matters into his own hands. Dawson and Casey don't see eye to eye on an important decision, while Kidd finds herself struggling to find time with S...

Boden takes a big step in the pursuit of a major career decision. Kidd becomes increasingly distrustful of Renée's motives with Severide. Herrmann has trouble bouncing back after a tragedy.

Severide is shocked when an old flame resurfaces; Casey devises a plan to support Boden in a new pursuit; and Herrmann crosses with another firefighter. Sarah Shahi guest stars.

Lt. Severide is shocked when Renée Royce resurfaces at the firehouse. Casey comes up with a plan to help Chief Boden in his latest pursuit. Kidd regrets a decision she made regarding Severide. Herrmann doesn't see eye to eye with Lt. Col...

Otis is cleared for duty and returns to work, but Kidd requests to keep driving the truck; Bria reaches out to Dawson with a personal problem; and Cruz reconnects with an old flame.