In the intense sci-fi series Helix, something's wrong at the mysterious Arctic Biosystems lab: A virus has gone rogue, moving swiftly from animal to human and then causing people to attack each other. Alan Farragut (Billy Campbell), a heroic researcher with the Centers for Disease Control and Prevention, flies in with a troop of scientists with the goal of checking the spread.

But it may already be too late: Alan's estranged brother, Peter (Neil Napier), is Patient Zero, infected and seeking victims among his Arctic Biosystems lab colleagues, all of whom are under the guidance of the enigmatic Dr. Hiroshi Hatake (Hiroyuki Sanada), who's not exactly hoping to stamp the virus out. Or is he? Matters are complicated by Farragut's team's twisty backstories: Along for the ride is Farragut's ex-wife, Julia (Kyra Zagorsky), whose affair with Peter was the reason for the brothers' falling-out, and Farragut's sultry, yearning assistant, Dr. Sarah Jordan (Jordan Hayes). The virus is spreading, and it's anyone's guess who will survive.