When the Deputy Mayor's dead body falls from the ceiling, along with hundreds of balloons, at a charity fundraiser, Stella and her date find themselves in the middle of the crime scene and Mac goes head to head with Robert Dunbrook.

Al Vicente, Craig T. Nelson, Craig Woolson, David Chisum, Donnie Jeffcoat, Ethan Erickson, Jack McGee, Julia Ormond, Marta McGonagle, Maury Sterling, Ramona DuBarry, Rudy Dobrev, Skyler Gisondo