Snake meets "Cabbie" who drives an armored taxi. Cabbie takes Snake to Harold "Brain" Hellman, an adviser to the Duke and a former associate of Snake. Brain is a brilliant engineer and has established an oil well and a small refinery, fueling the city's remaining cars. Brain tells Snake that the Duke plans to lead a mass escape across the Queensboro Bridge by using the President as a human shield and following a landmine map that Brain has drawn up. Snake forces Brain and his girlfriend Maggie to lead him to the Duke's hideout at Grand Central Terminal. Snake finds the President but is captured.