Fueled by his vision of Emma in grave danger, Peter attempts to rescue Sylar from his worst nightmare. At the carnival, Samuel reveals H.R.G.'s secret past in order to bring Claire to his side. Meanwhile, Lauren makes a bold move to put a stop to Samuel.

Bölüm: S04E18
Bölüm Adı: The Wall
Yayınlanma Tarihi: 01.02.2010