4x13: The Black Rainbow
4x12: Mt. Weather
4x11: Return to Mercy Labs
4x08: Crisis of Faith
4x06: Back from the Undead
4x05: The Unknowns
4x03: The Vanishing
4x02: Escape from Zona
4x01: Warren's Dream
3x11: Doc's Angels
3x09: Heart of Darkness
