Sierra Mist: Fire Escape PepsiCo's Sierra Mist and BBDO play up a cooling/quenching theme despite the Super Bowl's mid-winter date with some CGI (and a cute dog kicker). "Fire Escape" and the brand's other entry in the 2004 game, "Bagpipes," follow in the vein established in 2003 with"Hydrant"and"Hot Monkey."BRAND:Sierra MistYEAR:2004AGENCY:BBDOSUPERBOWL:XXXVIII