David S. Lee

An annoying floater takes a romantic interest in Violet. Ritter catches a local politician in a compromising position. Mouch and Severide help Trudy with an arson investigation.

Nikita talks Birkhoff into using $20 million of his own money to lure Percy into a trap; Birkhoff is arrested.

Michael and Nikita infiltrate Division in hope of capturing Percy; Sean and Alex are caught in a gunfire battle; Birkhoff seeks help from Sonya.

Percy threatens to set off a nuclear explosion unless his demands are met; Nikita decides the best way to stop Percy is to go into Division.

Framed for assassinating the president, Nikita is alone and on the run; Alex investigates a human trafficking ring.

Ryan reveals a secret that could derail Nikita's plans to be free of The Shop; Michael contemplates the future; a loan shark goes after Sam.