Nolan races to save Tommy's life and stop Irisa; tensions between Amanda and Stahma lead to a showdown.
Nolan fights to save the planet from the arkbrain's terraspheres under Irisa's control. However, E-Rep--and Amanda--are willing to kill Irisa to stop her rather than risk all on Nolan's plan. Meanwhile, Pilar abducts Christie and Alak, forcing Datak and Stahma to rescue Rafe and go after them.moreless
A dead Castithan hand maiden shows up on Datak's doorstep, her eyes removed, and he turns to Rafe for help. Meanwhile, Irisa meets the man from her visions, and Alak discovers that Christie is going to the Janus club behind his back.moreless
While Irzu's influence on Irisa grows, Niles makes an arrangement with Yewll and Datak realizes that Stahma doesn't want him to come home.
Kenya is among several people that are mysteriously abducted. Meanwhile, Rafe tries to determine who gave his dead son the golden device that may have led to the boy's death.
As SCIU threatens the nascent Abnormal "Homeland" (with a deadly weapon partly designed by Nikola Tesla), both Magnus and Caleb come under "friendly" fire. Cornered and determined, Magnus responds with a daring move no one - on either side - sees coming.moreless
Magnus is asked to help broker a peace agreement between Caleb, a Hollow Earth insurgent leader, and the world's governments - an agreement whereby Abnormals would be permitted to settle on the surface. Preparing to take military action against the Abnormal forces, Addison "drafts" Will back into the federal government, further dividing Team Sanctuary.moreless
Seeking to outrace the SCIU (who are attempting to capture a rare, legendary Abnormal), Magnus and Will are captured, injured and trapped in a Bolivian cave-in. Alone, the two friends struggle to survive - as they confront who they are and who they've become.moreless
Kate returns from Hollow Earth with word that insurgents are about to strike an above-ground target - and may have inside help from a trusted member of Team Sanctuary.
Just when Magnus thought Adam Worth was gone forever, she and Tesla become trapped in a virtual Sanctuary, where they are attacked by an avatar of Worth - who is determined to enter the "real" world.moreless
When a previously unknown Abnormal attacks Abby, Magnus and Will attempt to communicate with the creature using music - while Henry and Gavin retrace Abby's steps to find out what happened.
Team Sanctuary investigates a mystery on the high seas when the shipwrecked crew of a Bering Sea icebreaker murders the Abnormals on board and then turns on each other.
While Magnus deals with two ne'er-do-well flying Abnormals who entangle her in a wild scheme, Will takes a road trip to Monrovia - where he is unsettled by personal revelations and temporarily blinded during a riot.moreless
Magnus and Henry attempt to infiltrate a secret Abnormal testing facility run by Homeland Security and encounter an old friend whose loyalties are once again in question - Nikola Tesla.
Intending to meet with her mysterious new financial adviser, Magnus flies off to a remote African island - only to become embroiled in a dangerous hostage situation. Meanwhile, back at the fort, Will and Henry have their hands full tracking an escaped Steno.moreless
Team Sanctuary comes under fire from a U.N. inspector who threatens to cut off their funding and shut them down - attempting to turn Will against Magnus in the process. Meanwhile, Erika visits Henry, warning him of a potentially dangerous new dilemma.moreless
As Abnormals continue to pour out of Hollow Earth, Team Sanctuary seeks to prevent the Lotus Security Forces from committing "xenocide" - while searching for and worrying about Magnus, who was last seen heading towards Praxis just before it was obliterated.moreless