Following the Battle of New York, Agent Phil Coulson, having survived his apparent death before the battle, assembles a team of agents (Melinda May, Grant Ward, Leo Fitz, and Jemma Simmons) to investigate superhumans and other related phenomena, which are now public knowledge. Their first assignment involves Mike Peterson, who was supplied with an Extremis-containing serum by Project Centipede. Skye, a member of the hactivist group the Rising Tide who saw Peterson in action, warns him about S.H.
Skye is now integrated into Coulson's team as a consultant. Their next assignment is in Peru, tracking an "0-8-4", the S.H.I.E.L.D. code for "an object of unknown origin". Once there, the team quickly realizes that the object is a piece of forgotten Hydra technology powered by Tesseract energy. Coulson meets with a former colleague and officer in the Peruvian military, Camilla Reyes, and brings her team aboard their plane, the Bus. Reyes betrays Coulson in order to take the Hydra weapon for her
S.H.I.E.L.D. searches for one of its assets, Dr. Franklin Hall, who was kidnapped by Ian Quinn, CEO of Quinn Worldwide, using a gravity-based device. Quinn wants to use Hall to take control of the planet's gravity by building a giant "gravitonium" generator. Heading to Malta with the team, Skye volunteers to infiltrate Quinn's mansion during a party so that Coulson and Ward can rescue Hall. Skye tricks Quinn into believing she is betraying S.H.I.E.L.D. for the Rising Tide. However, Coulson soon
Coulson and his team investigate a series of diamond thefts by Coulson's former protégé Akela Amador, who is being blackmailed by an unknown handler using an explosive cybernetic eye. Coulson is able to take Amador to the Bus, while Fitz and Simmons create a pair of glasses that hijack her feed. This allows Ward to carry out Amador's mission while the team attempts to disarm and remove her cybernetic eye. Ward completes the mission, discovering mysterious carvings, while Coulson finds who he thi
The team attempts to find Chan Ho Yin, a Chinese street performer with pyrokinetic abilities, after he is kidnapped by Project Centipede recruiter Raina. Raina injects him with Extremis to increase his power, before harvesting his blood platelets for further experimentation. Skye knows a hacker who could have released the information on Chan's location and abilities; she secretly sleeps with him, trying to discover the truth. May finds them and, not trusting Skye, arrests them. S.H.I.E.L.D. atta
The team investigates a series of deaths involving levitation and electrostatic anomalies. Although the team initially assumed the deaths were caused by some form of weapon, the cause is found to be an alien virus from a Chitauri helmet salvaged from the Battle of New York. When Simmons is infected by the fatal virus, she and Fitz work feverishly on a cure while Coulson ignores a direct order from Agent Felix Blake to sacrifice Simmons and save the rest of the team. With time running out and una
At The Hub, a S.H.I.E.L.D. command facility, Agent Victoria Hand assigns Ward and Fitz to a mission in South Ossetia, where they must disable a weapon called "the Overkill Device", which turns enemy weapons against their users. Skye and Simmons try to find more information about the mission, which has been classified as Level 8, with Simmons tranquilizing Agent Jasper Sitwell when he catches her hacking into Level 8 files. Skye learns that there is no extraction team for them and informs Coulson
The team looks into a plot to find and assemble three parts of an Asgardian Berserker Staff which imbues the holder with super strength and an uncontrollable rage. They are opposed by a pagan hate group that has already discovered the first piece of the staff. With Thor off the grid, Coulson's team is assisted by Dr. Elliot Randolph. While retrieving the second piece of the staff, Ward touches it and relives a traumatic childhood memory involving his abusive older brother. He becomes irritable,
A mysterious force threatens Coulson's team when they bring in a safety inspector named Hannah Hutchins, who is blamed for an explosion that killed four technicians and who Coulson believes has subsequently developed telekinesis. After the plane makes an emergency landing, the team discovers that the mysterious force is one of the technicians named Tobias Ford who is trapped between Earth and "Hell" following the accident. Ford "targets" Hutchins to protect her from those who would try to harm h
Coulson recruits Peterson to his team for super soldier support when Edison Po is sprung from prison by upgraded Centipede super soldiers. Coulson's team traces a Centipede-powered soldier to an abandoned factory and is ambushed by a squad of super soldiers who were subjected to the same eye implant as Akela Amador. Po recommends Raina stop inquiring after the Clairvoyant, as it could mean her death. Meanwhile, Coulson and May are keeping information regarding Skye's parents from her. When Peter
Victoria Hand leads S.H.I.E.L.D.'s efforts to rescue Coulson while Centipede tortures him to learn the secret of his resurrection. Believing Skye to be untrustworthy and after seeking May's input, Hand has Skye removed from the Bus. Skye sets out on her own investigation, which leads the team to Coulson's location. After the Clairvoyant kills Po, Raina takes over Coulson's interrogation. She uses a scanning device to compel him to remember aspects of his being brought back to life. As Coulson ex
While at a S.H.I.E.L.D. Academy, Ward, Fitz, Simmons, and Skye investigate an attack upon Seth Dormer, a popular cadet, with an "ice machine" that can freeze people and their surroundings. Another ice machine soon freezes cadet Donnie Gill, though the agents are able to save him. While the rest of the team interrogates the other cadets, Fitz befriends Gill, seeing much of himself in him, and helps him solve a problem with a new power source. Meanwhile, Coulson and May go to Mexico City to find a
Hunting the Clairvoyant, the team boards a train in Italy on which a Cybertek Inc. security group is shipping a package to Quinn. The group is exposed, forcing Coulson and Ward to flee the train. Meeting up with May, they get back to the train and Simmons, but Fitz and Skye are gone, having already followed the package to Quinn's mansion. Skye is confronted by Quinn and discovers the alive Peterson in a hyperbaric chamber. Inside the package is a high-tech prosthetic leg from Cybertek's "Project
Skye is rushed to a S.H.I.E.L.D. medical facility, but the doctors are only able to stabilize her. Agents John Garrett and Antoine Triplett arrive to take Quinn for questioning, but Coulson refuses to turn him over. Garrett decides to interrogate Quinn on the Bus, learning that the Clairvoyant ordered Quinn to shoot Skye so they could learn about Coulson's resurrection. Fitz and Simmons, after looking over Coulson's files, realize that Coulson was revived at a place known as the "Guest House", w
The Asgardian Lorelei enslaves a biker gang and begins to form an army. The team is summoned to investigate an energy reading from the Bifrost, encountering Sif, who is seeking Lorelei. She explains that Lorelei escaped imprisonment during the attack of the Dark Elves and, to neutralize her power of controlling the minds of men, Sif must fit a special collar around her neck that prevents her from speaking. They fight Lorelei and her men, but Lorelei enchants Ward and they commandeer the Bus. Lor
Agents Garrett, Triplett, Hand, Sitwell, and Blake join the team in hunting the Clairvoyant. The agents pair up to pursue different candidates. While searching for Thomas Nash, May and Blake encounter Peterson/Deathlok and tag him with a tracker. They soon converge on his new location while Triplett and Simmons stay at the Hub with Hand. The team finds Nash, a vegetative man on life support who communicates through a computer. When Nash boasts about being the Clairvoyant and says that Centipede
After the Bus is hijacked, Garrett's jet is attacked by S.H.I.E.L.D. drones and he rejoins the team. At the Hub, Simmons and Triplett begin working together to secretly upload her research on Skye's blood, only for a Hydra assault on all S.H.I.E.L.D. facilities to force them into hiding. Coulson locks May in the interrogation room with Ward, still believing she is the traitor. Skye discovers a secret code in a signal on S.H.I.E.L.D.'s network that she deciphers to reveal Hydra's infiltration. Wh
Ward frees Raina and introduces Garrett to her as the Clairvoyant. Though disappointed that he is not actually clairvoyant, she agrees to try to replicate the "Guest House" drug. Colonel Glenn Talbot sends a military team to the Hub, so Coulson leaves with the team and Triplett, ordering Skye to erase all their identities, including Ward's. Coulson discovers a message with coordinates in the Canadian wilderness where they find the hidden S.H.I.E.L.D. base Providence run by Agent Eric Koenig. Cou
Koenig subjects Coulson's team to a rigorous lie detector test, which Ward narrowly beats to maintain his cover. Coulson takes Fitz, Simmons, and Triplett to stop Marcus Daniels, a superhuman and former Fridge inmate possessing the Darkforce who is obsessed with cellist Audrey Nathan, Coulson's former love interest. After rescuing Nathan, they devise a plan to lure out Daniels. The group overloads him with energy, causing him to explode. Coulson covertly comforts Nathan before withdrawing, as he
Fitz finds a message left by Skye informing them that Ward is a member of Hydra. Hill and a Special Forces team led by Talbot arrive at Providence, where Hill tries to convince Coulson's team to surrender themselves. However, upon hearing of Ward's betrayal, Hill decides to aid the team directly in their hunt. Skye leads Ward to the diner where she met Peterson and secretly tips off the police. She reveals that she knows his secret and escapes while he fights the police, but she is captured by D
In flashbacks, a teenage Ward is seen in juvenile detention where he first meets Garrett and accepts his offer to join his organization. Over the years, Garrett trains Ward and eventually tells him about Hydra. In the present, Coulson and May infiltrate Cybertek (who they realize is connected to both Centipede and Hydra) and learn that Garrett was the first Deathlok, his implants are failing, and he needs the Guest House drug to survive. The team travels to Havana, Cuba, discovering the recently
At Cybertek, Quinn begins his presentation to U.S. military officials, only for Garrett to interrupt and kill one of them. Evading the Centipede soldiers, Coulson and his team attack the Cybertek facility, with Quinn and Raina escaping with the gravitonium, Skye saving Ace, May defeating Ward, and Coulson confronting Garrett. Fury rescues Fitz and Simmons, though Fitz is barely alive, before joining with Coulson to face Garrett, who is ultimately dispatched by Peterson when he learns that Skye h