Beau meets Megan's cousin, NBC's Tim Russert. Kay and Stan return to duty, after Stan undergoes a final test, and Kay finds her desk has been moved. They, like Beau, must both get used to the job again. Tim and Beau investigate the discovery of a skeleton found buried in a backyard. Bolander and Munch discover an unlikely suspect in the murder of a quiet elderly couple: their grandson. Gee exposes Granger, who used his relatives in some department plumbing contracts; the information is leaked to the papers, Granger is forced to retire. Barnfather is made colonel and a new captain is named, Megan Russert. The higher ranks of the Baltimore police department are now more politically correct, but Gee doesn't like it.

The new Chief Medical Examiner (CME), Julianna Cox, speeds into town. An FBI agent, Pandolfi, conducts interviews with the squad about Kellerman. Frank looks for way to celebrate his anniversary with his wife. The new CME arrives on the scene of a homicide that Lewis and Bayliss are working on, they lay down their respective ground rules. Bayliss' murderer confesses to committing another crime. Kellerman is worried by the ongoing investigation and takes it out on another arson officer. Brodie offers to make chili for the Lewis family but the dinner turns into a fight for Meldrick and his wife. From a suggestion by Frank, Bayliss and Lewis get the other body exhumed and checked out. Frank and Mary celebrate their anniversary. Bayliss gains some insight into the new CME.