When Irene, head of a research team, is accused of killing her colleagues during a mission to study the aurora borealis in Alaska, she must clear her name by uncovering the truth about a swarm of nanobots that turned her team into violent, inhuman beings. As suspicion mounts and danger closes in, Irene races against time, battling both seen and unseen enemies, and finds unexpected romance amidst the chaos in the icy wilderness.