Zoo

The animal attacks continue and the team discovers that the mutation has advanced further... rendering their cure ineffective. Now with the aid of an anonymous sponsor, the team head to Argentina to meet with a scientist who may have discovered the key to the mutation.

While Jamie tries to make her way to safety, an increasingly desperate Chloe tries to find a cure to the mutation now that one of her teammates is infected.

While Jamie begins to suspect Logan, her infected foot gets worse. Meanwhile, the team flies to Geneva to meet with Eleanor, only to discover that she's dead due to a bizarre electrical attack. As she tries to get back to her unit, Dariela sees the head of the Noah Objective, General Davies, murder a man.

Davies advances the timetable of the Noah Objective, and the team discovers that he's working with Reiden. While they try to get a sloth that may hold the key to the mutation, Chloe and Dariela find the gas that Davies plans to use to wipe out the mutated animals. In New Brunswick, Jamie and Logan are attacked by the men who hired Logan... and want their money back.

The team's mysterious sponsor finally reveals herself and asks for their help dealing with a burgeoning food crisis. Meanwhile, Jamie and Logan reach Caraquet and find the city in flames. However, some of the townspeople have survived and offer them sanctuary... but it's not as safe as it appears.

After recovering Jamie and Logan, the team discovers that similar events happened in 1895... and a jellyfish in Lisbon may hold the key to cure. However, a traitor from within threatens to end the mission just as it's beginning.

While Mitch probes Jackson's memories as a child, the others go to the English village of Holbreach to find property belonging to the 19th century entertainer who may have originally mutated the animals in 1895.

Davies leads an attack on the plane to capture Jackson, inadvertently releasing several of the Triple-Helix animals. Meanwhile, Jackson blackmails Allison into looking for his missing mother, while Jamie discovers Logan's real intent.

Mitch and Allison turn to Mitch's father Max--a cryptozoologist--to identify the last animal infected by the Triple-Helix. Meanwhile, Abe considers telling Jackson the truth about how Elizabeth acquired the ghost gene.

In Helsinki, Mitch and Abe try to find Jackson after he flees from them after Abe tells his friend what he did. Meanwhile, Allison agrees to meet with the Russian Minister of Defense and persuade him to drop out of the Noah Objective.

While Mitch, Jamie, and Allison go to the Russian Embassy so that Mitch can convince the ministers to drop out of the Noah Objective, Jackson brings Robert back to the plane. Abe and Dariela demand that Robert stabilize Jackson before the ghost gene wipes out his humanity.

When Mitch and Jamie try to steal the pure animal DNA from Davies, they meet an old friend. Meanwhile, Mitch and Robert work to create a cure... and save Jackson from the mutation.

Mitch has to make the ultimate sacrifice to ensure that his friends escape Pangaea and rescue Clementine. However, it turns out that his efforts may have been in vain.