Headquarters Beercade, 2833 N. Sheffield Ave., will debut a special release keg of Colorado brewery Oskar Blues's G'Knight, one of two kegs in Chicago. 

The amber beer is described as having a "floral, hoppy nose" with a "sweet, subtle tone." G'Knight is an homage to Oskar Blues' owner Dale Katechis' early mentor Gordon Knight. Knight was a helicopter pilot in the Vietnam war and later died when working as a volunteer firefighter in Lyons, Colo.