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.

Sydney and Vaughn try to locate a bomb by convincing the maker (Ricky Gervais) that they are part of the Covenant.

Ben and Danny go head to head to see who can set Bonnie up with the better date. Meanwhile, Riley and Tucker end up involved in a neighbour's marital problems.

Kate and Jack are at odds; Locke solidifies his position as leader of the Others; Juliet and Sawyer are scrutinised.