The first half of the season explores the fallout of a massive prison break at Level 5, a high-security facility for dangerous posthumans.
: A major plot point involves a scientific formula designed to grant ordinary people superpowers, leading to a frantic race between those who want to use it for "evolution" and those who believe it will cause global catastrophe. Heroes Season 3
: Sylar undergoes a complex journey, moving from a cold-blooded killer to a brief stint as a "hero" working for Angela Petrelli, only to revert to his darker nature as he searches for his true parents. Volume 4: Fugitives The first half of the season explores the