Cliff 'Combustible' Huxtable is thrilled when his former college track rival, Colonel Sanford B. 'Tailwind' Turner, invites him to run the prestigious anchor leg of a charity relay race in the Penn Relays track meet. He is even more excited to discover that his formerly fleet-footed opponent, Charlie Stevenson, is now fat. But Cliff does not realize he is in for the surprise of a lifetime.