The team races to stop Stanton's plan to activate the mini-stims across the continent. Meanwhile, a wounded Rosen seeks revenge for his daughter by going after the Alpha personally.
While Rosen interrogates an Alpha prisoner, Gary and Bill try to rescue Skylar from Parish.
Kat returns to the team as they set out to find Stanton's secret weapon... and protect him. Meanwhile, Senator Burton challenges Rosen's methods of fighting rogue Alphas.
Difficult times arise for Rosen and his team as the loss of a loved one shocks everybody. Meanwhile, a woman abandons a baby boy at the office and Gary takes him under his wing.
Stanton Parish plans works to engineer a city-wide blackout... and Hicks defects to help him.
While Kat takes on her first mission tracking down a street drug that gives normal humans temporary Alpha powers, Rosen discovers the identity of the mole.
Rosen and Parish face off against each other after a young Alphas emerges with the deadly ability to control minds.
Rosen goes to Alpha gadgeteer Skylar Adams for help dealing with Stanton Parish, but Skylar and her daughter are soon at risk when Stanton gets too close.
An Alpha goes insane and his delusions lead him to abduct Rachel. However, when the rest of the team search for her, they find themselves entangled in a series of bizarre situations.
The team discover that the Alpha they're hunting is their missing teammate, Nina, whose powers are going out of control.
Cameron and Bill go undercover as fighters as an underground arena and meet a young girl with a unique power. Meanwhile, Gary considers moving out, Rachel bonds with the team's new tac leader, and Rosen tries to find out more about Stanton Parish.
Rosen and his team look for an Alpha with a vendetta, but the hunter becomes the prey when the Alpha comes after them.
Eight months after Dr. Rosen's startling announcement to the world about the existence of Alphas, the government has had him committed. His Alphas, which have gone their own ways, must decide whether to reunite and save their friend when Rosen is called in to deal with an Alpha prison break.