E1 - San Jose

Aired: January 16, 2015

15 months after the events at Arctic Biosystems, new CDC team with the addition of biotoxicologist Kyle Sommer respond to a potential outbreak on a Windjammer in the Northern Pacific. Their search leads them to an island occupied by a mysterious cult led by the charismatic Michael. Meanwhile, 30 years in the future, Walker arrives at the same island searching for Alan Farragut.

E2 - Reunion

Aired: January 23, 2015

The CDC team continue to investigate the island; at the same time, they discover Peter's brother, Alan, is a member of Brother Michael's cult, and his warnings for them to leave the abbey fall on deaf ears.

E3 - Scion

Aired: January 30, 2015

Peter and Jordan leave the safety of the Abbey to retrieve some specimens and discover just what’s living in the woods, meanwhile Sister Amy plots to make them leave forever.

E4 - Densho

Aired: February 06, 2015

As Michael struggles to keep the abbey under control, the CDC team moves closer toward tracking the source of the pathogen. Alan fights the urge to rejoin his team and confronts the reality about Peter’s allegiances. In the future, Walker makes a desperate attempt to escape from her delusional father, with potentially deadly consequences.

E5 - Oubliette

Aired: February 13, 2015

Michael locks Peter and Alan in a pit. Alan escapes and discovers that Kyle has a secret of his own. Agnes reveals a shocking truth to Michael, who drastically turns on her for doubting him. In the future, Caleb uncovers Walker's deception and takes matters into his own hands.

E6 - M. Domestica

Aired: February 20, 2015

Amy creates an outbreak of the disease. Michael torments Peter in the pit. Alan, Jordan and Kyle discover the truth about the Abbey's food chain. An uprising at the Abbey threatens the safety of the uninfected. In present-day Paris, Balleseros meet an unlikely immortal.

E7 - Cross-Pollination

Aired: February 27, 2015

As Peter gains a new cellmate, Michael takes extreme action when his followers begin to mutiny.

E8 - Vade in Pace

Aired: March 06, 2015

The Coast Guard arrives on the island to take the CDC team to another island to deal with another outbreak of the pathogen. Meanwhile, Sister Amy has to contend with Brother Michael and his plans.

E9 - Ectogenesis

Aired: March 13, 2015

Alan, Kyle and Winger search the woods for the tree with red sap that might be a cure for the pathogen.

E10 - Mother

Aired: March 20, 2015

The Abbey becomes a house of horrors as Kyle struggles with his infection and Anne begins to shape a successor to Michael.

E11 - Plan B

Aired: March 27, 2015

The Navy prepare to implement Plan B, a final solution to ensure that the virus and everyone infected with it never make it off the island.

E12 - The Ascendant

Aired: April 03, 2015

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 will kill first.

E13 - O Brave New World

Aired: April 10, 2015

Kyle rescues Dr. Sarah Jordan as Alan Farragut fights his own brother, Peter Farragut.