Original air date: 06/12/2015 Runtime: 83:10 min. 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 of Defiance. The town itself has fallen on hard times following the collapse of the gulanite mines, leaving it defenseless. Meanwhile... Datak, Stahma and Rafe run into a deadly complications on their quest to reunite their family.
Original air date: 06/19/2015 Runtime: 40:17 min. Nolan & Irisa encounter a survivor of Votanis Collective atrocities that can aid their first strike against General Rahm's oncoming army. Amanda negotiates with the Omec for the future of Defiance. The Tarrs return to find much changed, and their loyalties tested between the humans, the Omec, and the Votanis Collective. Guest starring Linda Hamilton as “Pilar.”
Original air date: 06/26/2015 Runtime: 42:32 min. Nolan & Amanda plan escape after they're captured while excavating a buried weapons cache. Meanwhile Berlin sees an opportunity for revenge against Irisa while investigating a Votanis Collective bombing in the heart of Defiance. Stahma's clandestine relationship with T'evgin, the mysterious Omec leader, takes a turn. Guest starring Jim Murrary as “Pottinger.”
Original air date: 07/17/2015 Runtime: 42:30 min. A visiting handsome arms dealer changes Defiance's fortunes, and divides Amanda, Nolan and Berlin. Nolan recruits a militia to fight the oncoming Votanis Collective army, but the people of Defiance need convincing to fight what may be an unwinnable war; Datak and Alak have a reckoning; Stahma's presence causes strife among the mysterious Omec.
Original air date: 07/31/2015 Runtime: 40:13 min. 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.
Original air date: 08/14/2015 Runtime: 42:42 min. After Nolan is unexpectedly freed from Votanis Collective custody, Amanda, Irisa, and Berlin hurry to free him from Kindzi's clutches. Datak regrets seeking Doc Yewll's help against the Omec. Nolan witnesses something startling in the mines.