`Street Outlaws' gained traction with viewers by glamorizing activities on the road and behind the scenes of street racing enthusiasts in Oklahoma City. Now, with underground leagues "exploding across the country and taking new forms," says Discovery Channel, the network expands its docuseries to focus on fledgling teams in New Orleans. Following the pavement scorched by their Midwestern brethren, street racers in the Big Easy band together to prove they are the fastest in the country.