Drama series in which people all over the world deal with their newly discovered superpowers. After a pre-emptive strike against Hiro and Ando in Africa, Arthur Petrelli orders Knox and Flint to hunt down his son and his granddaughter Claire. Nathan is stunned to learn his father is alive and leading a charge to worldwide destruction. At Pinehearst, Sylar has a charged confrontation with Elle. Suresh begins testing his new combined superpower formula. Later, with the others dead, injured or on the run, Matt attempts to wake Angela.