A team of scientists are thrust into a potentially life-or-passing situation in this thriller, which begins with the group being deployed to the Arctic to secretly investigate what could be a disease outbreak.

Dr. Alan Farragut and his team work to treat the outbreak patients and contain the virus, while at the same time a rebellion erupts at the Arctic Biosystems base.

The team have every hope that the virus is contained, but unfortunately it continues to spread at an alarming rate; at the same time, some of the secrets the docs are keeping prove to be deadly.

Alan and the team deal with secrets and suspicion as the crisis heightens and deadly consequences follow. Meanwhile, Walker tries to survive on Level R.

As Alan's controversial cure leaves Peter clinging to life, the unchecked virus forces Jordan to make a devastating decision. Walker discovers the surprising truth about her new ally, while Daniel squares off against Balleseros.

Alan and Jordan make progress in decoding the virus; Hatake secretly "cures" Walker before the corporation's black helicopters land on the base.

As Ilaria CEO Constance Sutton arrives to collect the virus and its cure, Alan finds Walker seemingly symptom-free. Daniel learns the truth about his "adoption" by Hatake.

Alan risks his life to save his brother Peter from Ilaria CEO Constance Sutton, only to see him re-captured by Vectors. Julia Walker deals with the mystery of her "cure" while her half-brother Daniel confronts their father, Dr. Hatake, about being abducted as a child.

A team of scientists are thrust into a potentially life-or-passing situation in this thriller, which begins with the group being deployed to the Arctic to secretly investigate what could be a disease outbreak.

Alan and Julia travel to an abandoned satellite station in a last-ditch effort to call for help. Once there, they come across the truth behind Hatake's plan and Julia's condition. Meanwhile, Dr. Jordan makes a startling discovery of her own, which could mean a cure for cancer.

The Vectors start working together to hunt down the uninfected as the CDC develops a risky cure and a band of assassins from Ilaria secretly infiltrate the base.

The uninfected are hiding in a secret bunker on the base as the CDC attempt to retrieve the canisters with the virus and the cure while the Ilaria assassins capture Hatake and force him to chose between which one of his children they willhug first.

Alan and Peter capture the assassin Scythe and demand to know the whereabouts of Julia's mother. Balleseros confronts Hatake about the missing Inuit children, while Anana and her brother learn of Daniel's fate. Concerns that the virus is in Ilaria's possession again forces Alan and the team off the base to search the world in order to retrieve it.