You are introduced to another Race. Defiances supplies are running low. The search continues for the two children and their kidnappers. We discover more about the Votanis Collective. Irisa and Nolan escape and try to return to Defiance.

Nolan and Irisa are rescued from their underground confinement by a mysterious force, just in time to discover that enemy forces are marching on the town.

While Nolan & Irisa fall into an unexpected and potentially fatal tour of their own past, Amanda & Doc Yewll enlist T'evgin to help rescue them. Datak & Stahma prepare a decisive move against Votanis Collective general Rahm Tak.

Defiance is under siege. Nolan, Amanda, Irisa, and the militia defend the town against a Votanis Collective incursion. Datak, recalling his father's chilling lessons, makes a pivotal decision. Stahma takes an unexpected trip.

Following a gruesome murder, Nolan and Irisa hunt the unusual beast loose in Defiance, and Doc Yewll investigates the surprising victim. Amanda resists welcoming back Stahma and T'evgin learns an unsettling truth about his daughter.

Over Nolan's skepticism, Amanda welcomes an encouraging Votanis Collective delegation to Defiance. Stahma's loyalties are tested by an unexpected arrival and T'evgin takes another step towards acclimating to life on Earth.

Nolan, Amanda, and Irisa search for a way to stop invulnerable Kindzi from waking and transporting more Omec to Earth. Datak seeks escape from a deadly Omec compound. Stahma implores Alak for forgiveness before it's too late.

With Omec on the loose, hunting Defiance citizens, Nolan, Amanda, Irisa, Datak, Stahma, Berlin, and Doc Yewll undertake a potential suicide mission to end the Omec threat once and for all.