Boone encounters Julie, a suicidal young woman with artificial limbs as hands, who is being used by a religious leader as a miracle when her hands are regenerated by taelon technology.

Major McIntyre confronted Rho-ha in Johnson's hospital room, a struggle ensued and McIntyre was killed. Boone and Sandoval defend Rho-ha, who is ordered to stand trial facing the death penalty for murder. The prosecuting attorney is Joshua Doors, the estranged son of Jonathan Doors. Travis Perkins, delusional Taelon supporter, has vowed to kill those who pose a threat to Rho-ha. Joshua confronts Rho-ha on the stand about the DNA experiments, Rho-ha becomes enraged and threatens to kill Joshua. Perkins is angry at the treatment of the Taelon and attempts a suicide bombing.

Boone and Lili investigate a small Amish town after several of its citizens mysteriously die.

Several soldiers who have volunteered to train in Taelon Interdimensional flight have instead been the victims of strange experiments - some have disappeared all together. A high ranking officer kidnaps Da'an in an attempt to have his men released.

Lili loads Augur's computer virus into the Taelon system and it takes affect immediately. System after system crashes and Lili and Da'an are in grave danger as the virus infiltrates the shuttle's computer and lurches them out of control. Augur thinks he can stop the virus, but he must send Boone deep into the building to access the central computer.

Renee breaks out a serial killer from prison, hoping she will be able to provide the information necessary to kill the deadly Atavus aliens, but the plan backfires.

Boone investigates a serial killer programmed with a CVI who tried to kill Da'an when he enacted an ancient taelon myth of good conquering evil.

A construction blast unearths a grave marker belonging to a Taelon scout sent to size up earth for Companion occupation thousands of years ago. Boone must find the grave which contains the research, before Sandoval finds the grave. Da'an loses his position as the United Nations Companion to Zu'or, but keeps the American Companionship.

The mothership is damaged when a peice of dark matter colides with it.

Lili is taken hostage as a Jaridian escapes from the Taelons in a shuttle. Liam pursues and both shuttles are drawn into a alien vessel. Liam explains that the vessel is a repository for the Kimera's accumulated knowledge. In order to leave, they must go to the vessel's core. Da'an confronts Zo'or about the Jaridian's escape, and challenges his authority. The Jaridian reveals his race and the Taelons were one until the Taelons separated. Now the Taelons want to force a union with the Jaridians by using humans as soldiers against them.

The Taelons' fate - and possibly Liam's - is decided after Liam and Renee find Ma'el's regeneration chamber. The discovery of the secret location causes the surviving Taelons and Jaridians to seek the mechanism, which promises to restore their draining energy. Street, meanwhile, solves the riddle of Ma'el which will allow the Taelons and the Jaridians to join.

After Police Captain William Boone's wife is killed, he is recruited to work for the taelons, a seemingly benevolent alien race that has been on Earth for 3 years. To do so he will be implanted with a CVI- a cyber viral implant that will expand his mental abilities and allow him to control a bio-weapon of unlimited power. However before he can make his decision he is also recruited by the resistance, a group of humans who oppose the taelons being on Earth. Lead by Jonathan Doors, the resistance informs Boone that the taelons are not what they appear to be. The CVI implant brainwashes its subjects into following the taelon blindly, in effect controlling them. The resistance informs Boone that they can remove this aspect from the CVI on the condition that he works for both the taelons and the resistance. Boone accepts and now searches for the truth of why the taelons are on earth and if they are responsible for the death of his wife.

Boone attempts to track his wife's murderer. He is determined to find out if it was the taelon companion Da'an who ordered her death to get Boone to work for the companions or if it was the resistance that killed her, securing Boone as the resistance's eyes and ears of the companions.

Oblivious to Boone and the resistance, Jonathan Doors comes out of hiding and launches a media campaign against the taelons, leaving Boone to clean up the mess.

At resistance headquarters, Boone meets two molecular biologists, Sahjit Jinnah and his fiancee Rayna Armitraj, who are studying the alien probe captured after it wreaked havoc in an Amish community. A power surge causes Rayna to cut off the top of the probe, which responds by dematerializing her. Unaware of the situation, Sahjit and Boone discuss with Doors and Auger the probe's purpose, recalling its ability to replicate butterflies into killers. Launching the resistance into battle with the probe that may be studying Earth.

Sandoval's CVI is degenerating. While Dr Belman works to restore his CVI and save his life, Sandoval, free from his CVI, escapes to reunite with his wife, only to put her life in danger. Boone learns that Sandoval's CVI contained information about the Taelon's mission on earth, and tries to save Sandoval's life.

At a Conference of Psychic Sciences, "The Commonality" the Taelon psychic link has been invaded and the secret plans for Earth are known. Katya Petrenko possesses incredible psychic gifts and an interest in Boone. She confronts Zu'or, telling him that the Taelons must change their approach to humans, or they will destroy both races. Katya reveals that a taelon named Ma'el gave some humans the gift to break into "The Commonality". As Katya dies, Dr. Belman performs a brain transfer of all of Katya's knowledge to Boone.

Colonel Purcell and agent Carter discuss if the body of Thomas Blanchard, a thief who was beaten brain dead, is suitable for them. Doors International head, Anne Portnoy, demonstrates a new Taelon device, an EMP (ElectroMagnetic Pulse) weapon. Boone meets with Doors and Augur to warn them of the EMP. They plot to steal the weapon to prevent the Taelons from using it against Earth. Before they can obtain the EMP, Blanchard steals it. Lili sneaks into Blanchard's hideout, but is discovered and taken hostage. Blanchard reveals to Lili that he is really her father, Colonel Purcell.

Ne'eg dies from being exposed to a devastating virus that was unleashed from an alien probe. The virus falls into the hands of a group of white supremacists, they release the virus into the Lincoln Hills homeless shelter. The deadly virus quickly spreads, threatening to decimate both the human and Taelon races. Boone, infected with the virus, comes up with an idea to develop anti-bodies against the virus but it may not be in time to prevent the virus spreading over earth.

A holographic image of Rayna, who was consumed by an alien probe, tells Augur that the Taelons are dismantling the probe which will kill her, and they will learn about the Resistance's secrets. Hearing of Rayna's appearance, Sahjit is determined to bring her back. The Taelon lab is under intense security and Augur hires a special operative, Michael Sloane, to lead the resistance team to infiltrate the Taelon compound to destroy the alien probe.

Divers stumble across a strange radiant canister while searching for sunken treasure. Upon opening the canister an alien being known as Ha'gel is released from its prison and assumes the identity of one of the crew and destroys the others. Boone is called to the crime scene and his suspicions are raised when he finds Taelon writing on the empty canister. Upon questioning, the Taelons tell Boone that Ha'gel is the last of an alien criminal caste. Afraid that Earth will learn the truth, the Companion's recruit the help of Beckett to deal with Ha'gel. Ha'gel assumes Sandoval's form, and confronts Beckett.

The Companions are invited to join with a religious order in a ceremony. The group is made up entirely of women and seeks that special spiritual connection with the Taelons that will bring them to an enlightened state. Liam finds a former resistance member, Elizabeth, in the group. During the ceremony, the Companions share their energy with The Cloister. Worried about the possible security leak, Liam and Renee have to stop Elizabeth from telling the cult everything.

The Taelons' decision to enter death stasis causes a rift between Zu'or and Da'an, who refuses to share the core energy he has accumulated. Meanwhile, Liam learns that he only has days to live.

Maiya begins to suffer from dimensional phasing, Augur claims that Maiya and her counterpart Isabel must merge or they may both die. Doors enters presidential race to begin to challenge the Taelons. Lili confirms that Isabel and her have the same father. Sandoval questions Maiya on the mothership, while Doors and Zo'or discuss joining forces.

While Doors is holding a press conference, Liam sees a man videotape the room. When Liam confronts him, the man runs from the building. Both exchange gunfire, and the man turns his weapon on himself and is vaporized. Augur discovers the man had a Taelon warrior implant. Julia gets a tip of the implant and an arms dealer named Margolis. Julia and Augur questions Margolis about the deal with the warrior implant. They find the weapons are undetectable by security. One of the warriors bursts in and vaporizes Margolis. Julia and Augur can't seem to stop the warrior and finally escape by racing off in a car. Liam suspects the Resistance is being set up, and is reluctant to put members in danger at the next public debate. Julia secretly offers her unit's protection to Doors for the debate. Liam arrives at the debate and is furious to find Julia armed. Liam discovers three warriors, disabling two of them while a third escapes. Julia and her team respond to the alert and find they have been set up.