In the year 2046, it's a new Earth - with new rules. Over thirty years after various alien races arrived on Earth, the landscape is completely altered, terraformed nearly beyond recognition. To the town of Defiance, on what used to be St. Louis, comes the mysterious Nolan (Grant Bowler) and his charge, Irisa (Stephanie Leonidas). As they settle into town - overseen by the mayor, Amanda Rosewater (Julie Benz) and filled with residents like the powerful Rafe McCawley (Graham Greene), enterprising lounge owner Kenya (Mia Kirshner) and the ambitious, alien Tarrs (Tony Curran and Jaime Murray) - events begin to unfold that threaten the fragile peace this border town has fought for. Written by Official site

Joshua's search for Irisa takes him across the country. Irisa keeps a deadly secret. In no uncertain terms, Stahma Tarr lets her son, Alak, know who is really running the family business. Doc Yewll has a plan to escape the prison camp. Interim Mayor Pottinger could be in serious trouble. Written by Marko

Nolan and Irisa return to Defiance but Irisa is quickly arrested and jailed. Most are happy to see Nolan back, particularly Amanda and Rafe. When a particularly nasty bomb goes off in the marketplace, Amanda convinces the mayor to hire Nolan to track down the perpetrators. He quickly determines there is a second bomb. Doc Yewll thinks she has a way out of the prison but Dalak Tarr has his own plan to get released. Written by garykmcd

Irisa's terrifying black-outs escalate, driving a wedge of secrecy between her and a worried Nolan. Meanwhile, the Tarr family business thrives under Stahma's self-appointed direction while an increasingly suspicious Datak remains in jail.

After his caravan is viciously attacked in the badlands, a badly shaken Pottinger orders Nolan to hunt down and destroy those responsible. Nolan's manhunt implicates one of Rafe's miners causing tensions to explode. Meanwhile, a vengeful Datak is determined to reclaim control over the family business. Written by Anonymous

Amanda is being stalked by a man who managed to get into her room. She manages to defend herself but tells Nolan that she was attacked in New York 5 years ago. When Nolan apparently accosts her in an alleyway, she wonders if she is hallucinating. Datak Tarr is recovering from his beating and visits the house. Christie is not pleased to see him, especially after what he did to Alak. Datak sets out to rebuild his empire. Rafe has moved in with his daughter at Stahma's house and is having some trouble getting use to their customs. Someone from Doc Yewl's past arrives in Defiance. Written by garykmcd

After an Arkfall crash, Pottinger recruits Nolan to lead their salvage mission but his secret agenda puts them in grave danger against an alien race they've never encountered before. Meanwhile Stahma, rebuked by church elders for her growing sense of female empowerment, makes a shocking power play, while Irisa begins confiding her dark secrets to Tommy. Written by Anonymous

Datak awakens to find his wife's handmaiden dead on his doorstep. Doc Yewl determines that she had been brutally beaten - her eyes were removed - in a nearby alley and dumped in a trash bin, from which she managed to crawl to Datak's doorstep. He and Rafe dispose of her body but hey then sets out to find the killer. Viceroy Mercado, now in charge of the town and is enjoying his outing to the cross-dressing club. Christie's outings to the same club creates problems with Alak. Meanwhile, Rynn is in Defiance looking for Sukar and introduces Irisa to Kai, the man Irisa has been seeing in her visions. Written by garykmcd

Having learned Irina's secret, Nolan makes it clear that there are to be no more secrets and that they will live or die together. Nolan and the military arrest a Votan spy, Mahsuvus Gorarth, who they believe has information about a bomb - a dirty nuke - placed somewhere in New York City. Enhanced interrogation techniques aren't having the desired effect. Amanda meanwhile receives a cryptic phone call telling her to to deliver Mahsuvus to them alive or her sister Kenya will die. Irisa meets her victims who begin to gather in the same place. Written by garykmcd

Kenya's return to Defiance causes a stir in several quarters. Her memory is spotty at best and believes she was kept prisoner for about three weeks. She has no memory of the year she's away. Stahma is, to say the least, shocked at Kenya's return and doesn't quite believe it's her. She and Dalak set out to the woods to see if her grave is intact. For reasons of their own, Pottinger and Doc Yewl both want Kenya's memory erased permanently and Yewl think she has a way to do that. As a few of Kenya's memories return, Nolan begins to see a pattern and a possible explanation. Rafe's son Quentin reappears in Defiance. Written by garykmcd

Ambassador Olfin Tennety's return to Defiance for a tour of the mine is short-lived after she dies in a cave-in. Amanda and Mayor Pottinger survive but are trapped behind the rockfall. It's up to Nolan and Berlin to climb down an adjacent shaft to rescue them. Nolan finds evidence that the cave-in was anything but accidental. Rafe has a suspect in mind. Alak has broken off his relationship with Deirdre and is doing his best to make things up to Christie. Deirdre refuses to give on him. Meanwhile, Nolan is keeping Irisa close - and in handcuffs - after he catches her breaking into the E-Rep compound attempting to steal a terrasphere. Irisa remains undaunted in her quest. Written by garykmcd

Treasure Doll is dead, having been thrown from the window of the Gateway Arch. Amanda investigates as Law-keeper Nolan leaves Defiance to retrieve Irisa, still possessed by Irzu. Nolan finds Irisa, but is captured. He and Tommy escape the ark-affected with Irisa, but she wakes and gets away. Alak is arrested for Treasure Doll's murder. Stahma covers it up only to discover that neither Alak nor Datak were responsible. Written by dnystrk

Stahma and Datak are kidnapped and awaken chained to the floor in an empty silo. They are soon joined by their captor and a friend and vengeance is in the air. Nolan regains consciousness and finds Tommy severely injured. He rigs a sled to try and get Tommy to Defiance for medical attention.They have a long way to go. Along the way, Tommy remembers various encounters with Nolan and Irisa. Irisa, now completely controlled by the the ark-brain, initiates the plan for the final destruction of the Earth. Rafe is surprised by the sudden return of his wife Pilar, who seems to have recovered. Doc Yewl decides to try and find a way out of the underground city and comes across something very interesting. Written by garykmcd

The residents of Defiance worry about having lost all contact with New York. Some believe it is the work of the Voltanis Collective but Nolan knows otherwise. Doc Yewl has made it back to Defiance and confirms Nolan's story about the arkbrain. She also knows how to kill it - but that would also kill Irisa in the process. Nolan realizes that that it was having both keys inside Irisa that reactivated the Kaziri and so sets out to locate her and stop the destruction. Berlin meanwhile is is having trouble coming to terms with Tommy's death and puts the blame squarely on Irisa. Datak returns home, much to Alak's surprise. Christie's mother Pilar has her own plans for her daughter. Written by garykmcd