Plot

Second Son takes place in 2016, seven years after Infamous 2‍ '​s Conduit protagonist Cole MacGrath sacrifices himself to cure humanity of a plague and destroy The Beast. Cole uses the powerful Ray Field Inhibitor weapon, which kills him and most of the other Conduits. The United States government establishes the D.U.P. to hunt down and capture the world's remaining Conduits, dubbing Conduits with the pejorative "Bio-Terrorists". The protagonist is Delsin Rowe (Troy Baker), a graffiti artist and the local delinquent of the Akomish reservation. Delsin has the unique Conduit ability of Power Absorption, allowing him to use other Conduits' powers. His brother, Reggie (Travis Willingham), is the local sheriff, and often arrests Delsin for his acts of vandalism.Both are Akomish Native Americans, whose territory lies at the shore of Salmon Bay, Washington. The antagonist is Brooke Augustine (Christine Dunford), the director of the D.U.P. and a Conduit with power over Concrete. Her actions in the Akomish reservation drive Delsin to travel to Seattle, now under lockdown by D.U.P. forces. Delsin and Reggie encounter three other Conduits: Henry "Hank" Daughtry (David Stanbra), a convict with control over Smoke; Abigail "Fetch" Walker (Laura Bailey), an ex-junkie who uses her Neon powers to hunt down the illegal drug dealers in Seattle; and Eugene Sims (Alex Walsh), a reclusivevideo gamer who uses his Video (digital materialization) powers to save suspected Conduits from the D.U.P.

Story

After Reggie catches Delsin spray-painting again, their subsequent argument is interrupted when a military truck carrying three Conduit prisoners crashes on the Akomish reservation. Two of the Conduits escape. Delsin pulls the third, Hank, out of the wreckage, and inadvertently absorbs his smoke powers. Shocked and frightened, Delsin pursues Hank in an effort to figure out what has happened and how to control his powers. However, they are both cornered by Brooke Augustine. She encases Hank in concrete and questions Delsin, suspecting him of hiding something. Delsin can choose to either tell Augustine the truth about his powers or reveal nothing. Regardless, Augustine renders him unconscious before moving on to the other tribe members.

Delsin awakes a week later and discovers that Augustine has tortured the rest of the tribe in an unsuccessful bid to gain information. However, she has left them to gradually die from concrete shards buried into their bodies, including their leader Betty (Karen Austin). Reggie (who was spared torture) has learned that the only way to remove the shards is to use Augustine's power on them. Delsin realizes that he can absorb Conduit powers and resolves to go to Seattle to take Augustine's powers and save the tribe. Reggie reluctantly accompanies Delsin to keep an eye on him. They reach Seattle and find that it has been put under strict martial law by the D.U.P. in order to find the other escaped Conduits. With Reggie's help, Delsin battles D.U.P. forces and tracks down core fragments to develop his powers. He eventually encounters the other two escaped Conduits, Fetch and Eugene, and absorbs their powers. After both confrontations, Delsin defends the Conduits from Reggie, who initially views them as "freaks", and can choose to either redeem or corrupt them.

Now possessing three powers, Delsin encounters Hank, who has escaped again. Hank tells Delsin that Fetch and Eugene have been captured by the D.U.P., and are being held on an artificial concrete island in Puget Sound. Hank tells Delsin that if they both attack the island, Augustine will be lured out. Reggie does not trust Hank, and warns Delsin not to trust him either. While attacking the island with Hank, Delsin becomes bound with concrete. Augustine appears and thanks Hank for bringing Delsin to her, revealing Hank to be a traitor. Reggie appears and fires a rocket launcher at Augustine, who disappears, and then guides Delsin to him and frees him of his concrete restraints. While the brothers free Fetch and Eugene, Augustine reappears, encases Reggie's feet in concrete and blasts them almost off the platform. As they dangle above the ocean, Reggie tells his brother that he is proud of him, then lets Delsin's hand go and falls to his death.Distraught and enraged, Delsin climbs back up onto the platform and battles Augustine, destroying the entire island.

Augustine flees back to headquarters. Delsin tracks Hank down to the docks, where he is fleeing from D.U.P. forces. Hank begs for forgiveness, saying that he only worked with Augustine because she threatened to hurt his daughter.[20] Delsin can choose to either kill Hank, or let him escape Seattle with his daughter. Aided by Fetch and Eugene, Delsin rallies an assault on the D.U.P. headquarters. After breaking through the building's defenses, Delsin confronts Augustine and reveals to her that he has figured out she staged the Conduit escape at Akomish to instill fear in the population and give the D.U.P. a reason to continue their regime. Augustine lets Delsin absorb her powers, and tells him that she wants to save the Conduits by imprisoning and protecting them from the population. Delsin battles and eventually defeats Augustine with his new concrete powers.

If Delsin has good Karma, he spares Augustine and exposes her crimes to the world. She is arrested and the D.U.P. disbands. Delsin, Fetch and Eugene convince the humans that they can peacefully coexist with the Conduits. All of the imprisoned Conduits are freed. Delsin returns to the reservation and heals the tribe members, then paints a mural dedicated to Reggie.

If Delsin has evil Karma, he kills Augustine and, together with Fetch and Eugene, takes control of Seattle. He releases all of the imprisoned Conduits and absorbs their powers. Upon returning to the reservation, Delsin is met by a wheelchair-bound Betty who banishes him from the tribe for killings in Seattle. Shocked and angered, Delsin destroys the entire reservation.

(From Wikipedia)

Gameplay(SINGLE-PLAYER):