H.R.G.'s past catches up to him as Matt and Ted Sprague, come to Texas looking for answers, and take him, his wife, son and Claire hostage -- leading to a tragic, explosive showdown. Secrets are revealed and new threats to the "heroes" are introduced.

After "helping" Suresh search for more people with special abilities, Sylar's rampage continues with two "heroes" being confronted by the stronger-powered serial killer. Nathan must factor what he's learned from Linderman into difficult decisions that will shape the future -- for him, his family, New York City and the world. As Thompson uses every tool at his disposal to find Claire, Linderman drafts Jessica into his far-reaching plans. Meanwhile, Hiro's resolve to "save the world" strengthens in the face of a grim reality