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.

Abe and the team's new member, Dariela, go to find a possible survivor of Dariela's squad. Meanwhile, Jackson and a local seek out the source of the new mutation, while in Canada Jamie tries to get back to civilization.

After tragedy strikes their only ally within the government, the team is left on their own to stop a surge of animal-related attacks from destroying the city of Geneva, Switzerland. Also, new team member Dariela makes a shocking discovery about General Davies, head of the Noah Objective, and in the Canadian wilderness, Jamie witnesses the animals' broadening effect on the environment and uncovers a troubling detail about Logan.

In an effort to unravel a dark conspiracy within the Noah Objective, the team travels to Vancouver, where it must infiltrate a black-tie event in order to get close to General Davies and stave off an impending animal threat. Also, Jamie and Logan's journey is interrupted when Logan's past comes back to haunt them.

Jamie and Logan arrive in Caraquet but are horrified to find it's not the refuge they hope for. Also, after the team gets a lead on Jamie's location, they eagerly head to Caraquet in the hopes of reuniting with her.

The team travels to Portugal where they square off against a dangerous venom dealer in order to get one step closer to the cure. Also, Jackson's increasingly erratic behavior jeopardizes the entire team.

Mitch digs into Jackson's past to get the answers they need to make the cure. Also, the rest of the team hunts for evidence related to the triple helix inside a quaint English town.

Jackson learns his mother is missing in Africa, but before he can look for her, he and the team must contend with a hostile force that has overtaken their plane. Also, Jamie learns a shocking secret about Abraham.

Jackson faces the most difficult decision of his life. Also, Mitch reluctantly enlists help from his father, Max Morgan, to investigate the origin of the final set of triple helix animal bones.

With Jackson missing, Mitch and Abraham race to find him before General Davies and the International Animal Defense Group can locate him and prevent the team from making a cure. Also, Jamie, Dariela and Allison make a last-ditch effort to convince the Russian government to drop out of the Noah Objective.

Mitch and Jamie brave an animal attack at the Russian Embassy in Washington, D.C., and Jackson finally gets the answers he's been looking for from a surprising source.

Mitch and Jamie hatch a daring plan to undermine the Noah Objective once and for all, and the team reunites on the Island of Pangaea where the final pieces of the cure are put in place.

Mitch and Jamie hatch a daring plan to undermine the Noah Objective once and for all, and the team reunites on the Island of Pangaea where the final pieces of the cure are put in place.