As Slade unleashes his wave of Mirakuru-enhanced soldiers on Starling City, Oliver and his team prepare to take them on. Meanwhile, Malcolm returns to town to meet his biological daughter.
The town of Willoughby has been turned into a reeducation facility, and Doyle makes things difficult for Tom.
A villain nicknamed the Clock King stalks Starling City, committing precision crimes. Meanwhile, Laurel hosts a dinner party for her family but things go badly, and on the island Sara befriends a dying pilot.moreless
Stephen and his fellow ULTRA trainees are given a test by Jedikiah to determine their worthiness as Agents but not everyone is happy to work as a team.
Cara is faced with a visitor from her past and John works with a new breakout while Russell is sent on a dangerous recon mission that could force a clash between different groups of Tomorrow People
After Stephen breaks ULTRA protocol during a training exercise, Jedikiah's mysterious boss insists on meeting him. After learning Jedikiah is unable to help him Stephen turns to John who is only interested for selfish reasons.
Elsewhere Cara and John disagree on a dangerous plan when some of The Tomorrow People become desperate to attend a party in the outside world. And when Stephen again bails on plans with Astrid she decides to find out what he is really up to.
Oliver goes after China White and her new partner, Bronze Tiger, when they interdict shipments of medicine intended for a hospital in the Glades. Meanwhile, Officer Lance captures Roy and Thea gives her boyfriend an ultimatum, while Laurel continues her hunt for the Arrow.moreless
Annie insinuates herself into the FBI's investigation of Seth's death. When FBI Agent Vincent Rossabi tells her that traces of skin were found under Seth's nails, Annie has only a small amount of time to cover her tracks. Henry offers Annie the opportunity of a lifetime.moreless
Alex, broken by Amanda’s programming, her inability to save everyone, and her role in tragic events at Division, reverts to her old behavior and lashes out violently. With most members of Division dead or scattered, Nikita and Michael try to sift through the remains of Division to determine who and what can be salvaged. To make matters worse, they must act quickly, before the President realizes what has happened. Memories of Division’s glory days haunt Nikita and Michael, and Birkhoff struggles with his own personal losses.moreless
Miles needs to stop a mad bomber while Rachel starts her quest to turn the power back on for the rest of the planet.
A new vigilante, The Savior, stalks The Glades, killing those that he believes have wronged the residents and broadcasting their deaths online. When The Savior explains that he was inspired by The Hood, Oliver sets out to stop him. Meanwhile, Quentin comes to accept that Dinah is telling the truth and Sarah is still alive, but Laurel isn't so sure.moreless
Oliver and Diggle are at odds when Diggle's former commanding officer is next on the list. Meanwhile, Thea notices when Moira and Malcolm spend time together, while Tommy and Laurel have dinner with Tommy's father.moreless
Sam asks a friend, hunter Martin Creaser, to track Benny just to be on the safe side. However, when Martin gets word of a vampire kill in Benny's neighborhood, he takes things into his own hands, forcing Dean to make a tough choice.moreless
Owen is freed from a Russian prison by Anne, a rogue Division agent working for Amanda. He manages to escape Anne's clutches and gets a message to Nikita to let her know that he's free. Once Nikita finds Owen, he is surprised to hear that Nikita is once again with Division but returns to Division headquarters with her. Though Michael and Ryan aren't certain Owen can be trusted, Nikita stands by her friend.moreless
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.moreless
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.moreless
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.moreless
Nikita talks Birkhoff into using 20 million dollars out of his own pocket in a scheme to bankrupt Percy and Division, but Percy ends up getting his hands on all of Birkhoff's money, which causes tension between Birkhoff and Nikita. Nikita and the group have one final opportunity to get back at Percy, but Birkhoff is arrested while trying to reclaim his money, forcing Nikita to break him out of jail before Division can reach him. While Nikita works to free Brikhoff, Michael and Alex pursue the stolen money.moreless