Dizi Adı: Helix
Bölüm Adı: Black Rain
Sezon/Bölüm: 1. Sezon 11. Bölüm
Yayın Tarihi: 14 Mar. 2014

Peter Farragut and vectors attempt to spread the virus in a desperate, final attempt. Meanwhile, the scientists of the CDC create a cure for the virus by working together, just as a threat from deadly mercenaries of the Ilaria Corporation threaten their very lives.