Fifteen months following the incidents at Arctic Biosystems, a new CDC team, bolstered by biotoxicologist Kyle Sommer, investigates a possible outbreak aboard a vessel in the Northern Pacific. Their investigation takes them to an island inh…

The CDC team persisted in their investigation of the island. Simultaneously, they learned that Peter’s brother, Alan, was affiliated with Brother Michael’s cult, and his pleas for them to abandon the abbey were ignored.

Leaving the sanctuary of the Abbey, Peter and Jordan venture into the woods to gather samples, unaware of the hidden life within. Meanwhile, Sister Amy schemes to ensure their departure, permanently.

While Michael strives to maintain order within the abbey walls, the CDC team edges nearer to identifying the pathogen's origin. Alan battles the pull to return with his own unit, forced to confront the unsettling truth about Peter’s loyalti…

Michael imprisoned Peter and Alan within a pit. Alan managed to escape, only to find that Kyle harbored a secret of his own. Agnes revealed a startling truth to Michael, who reacted with a sudden and bitter coldness, his trust shattered by …

Amy's actions trigger the spread of the illness. Michael inflicts torment upon Peter within the pit. Alan, Jordan, and Kyle uncover the truth regarding the Abbey's food supply. A revolt erupts at the Abbey, jeopardizing the safety of those …

With the arrival of a new inmate, Michael faces a dangerous shift in power as discontent brews among his followers, pushing him to desperate measures.

The Coast Guard arrived at the island, transporting the CDC team to a different location where a new outbreak of the pathogen was taking hold. Simultaneously, Sister Amy found herself navigating the complexities of Brother Michael and his d…

Alan, Kyle, and Winger ventured into the woods, their search focused on a particular tree – one known to yield sap of a striking red hue, a substance they hoped held the key to combating the spreading pathogen.

A creeping dread settles over the Abbey as Kyle battles the insidious spread of his infection, while Anne quietly begins to mold someone in Michael's image, a carefully cultivated heir.

The Navy is poised to enact Plan B, a definitive measure designed to prevent the virus and all those afflicted from leaving the island.

While the uninfected seek refuge in a hidden bunker beneath the base, CDC teams work to secure the canisters containing both the virus and its antidote. Meanwhile, Ilaria assassins have captured Hatake, compelling him to make an impossible …

Kyle came to the rescue of Dr. Sarah Jordan amidst the conflict between Alan Farragut and his brother, Peter.