This mashup answers a question in need of an answer - "What would happen if somebody held a Barney-only convention?" To answer this important question, four well-know Barneys have pooled their talents. They are: Barney the purple Tyrannosaurus rex from Barney & Friends, the oft inebriated Barney Gumble of the Simpsons, Barney Rubble of Flintsones fame, and last, but certainly not least, Deputy Barney Fife of The Andy Griffith Show.