Earth: Final Conflict
When an alien species comes to Earth bearing gifts for humanity, a few suspicious humans seek to discover and resist the newcomers' true designs.

The Forge of Creation
As the fourth season begins, Lili Marquette (Lisa Howard) gives birth to a child that may be the last hope for survival of the Jaridians.

Sins of the Father
Renee (Jayne Heitmeyer) and Liam (Robert Leeshock) discover Da'an (Leni Parker) is addicted to Kryss, a substance used by Taelons to help them adapt to Earth's atmosphere.

First Breath
Renee (Jayne Heitmeyer) and Liam (Robert Leeshock) investigate the link between Zo'or (Anita La Selva) and a biomedical facility's clandestine cloning operation.

Limbo
While deceased Doors International President Jonathan Doors (David Hemblen) resurfaces in cyber form to deliver a potentially deadly blow to the Taelons, an alien murder aboard the mothership reveals to Liam (Robert Leeshock) the Taelon's darkest secret.

Motherlode
Augur is caught and placed in a special prison where he is placed in a sensory deprivation chamber. An amoralist gets him out and wants Augur to help him steal the gold Zo'or has on the mothership. When Liam learns of what happened he tries to find Augur.

Take No Prisoners
The discovery of a deadly parasite, believed to be extinct, threatens an amnesty for all Resistance members, which has been negotiated by the Atlantic National Alliance.

Second Wave
Chaos erupts when the Taelons decide to abandon Earth in the face of imminent Jaridian invasion.

Essence
Renee's (Jayne Heitmeyer) younger brother, Richard (Chris Martin), falls victim to Zo'or's (Anita La Selva) plot to harness human emotions.

Phantom Companion
While onboard the Mothership, Renee (Jayne Heitmeyer) is taken hostage by a mysterious being who haunts the secret chambers of the vessel.

Dream Stalker
Liam (Robert Leeshock) and Renee (Jayne Heitmeyer) track a serial killer who invades people's dreams to commit murder.

Lost Generation
Liam (Robert Leeshock) and Renee (Jayne Heitmeyer) suspect Taelon wrongdoing when a human baby is born with a CVI implant.

The Summit
Liam (Robert Leeshock) copes with a neural surveillance implant while trying to track Da'an (Leni Parker), who leaves Earth on a mysterious “final” journey.

Dark Matter
The future of the Taelons looks bleak after a mysterious piece of dark matter collides with the Mothership.

Keys to the Kingdom
Zo'or (Anita La Selva) threatens to attack Earth after an artifact containing the secret of synthetic core energy is stolen from the Taelon Mothership.

Street Chase
While trying to elude Sandoval (Von Flores), Street (Melinda Deines) learns a lesson in trust.

Trapped By Time
The fate of the Earth and the Taelons may be revealed when three astronauts from the future are discovered in stasis within a top-secret government base.

Atonement
Sandoval (Von Flores) agrees to testify against the Taelons in return for immunity.

Blood Ties
Liam (Robert Leeshock) and Renee (Jayne Heitmeyer) suspect Zo'or (Anita La Selva) of orchestrating a series of murders.

Hearts and Minds
Renee (Jayne Heitmeyer) is torn between love and duty when her boyfriend (Cameron Daddo) is captured by the Taelons.

Epiphany
The Taelons' impending death stasis sparks a battle of wills between Da'an (Leni Parker) and Zo'or (Anita La Selva).

Dark Horizons
A Jaridian energy beam turns a team of Companion protectors into assassins.

Point of No Return
The Taelons' fate is decided when Liam (Robert Leeshock) and Renee (Jayne Heitmeyer) find Ma'el's regeneration chamber.
