Devastated by the consequences of Jim’s swift and violent response to his kidnap attempt, Whitey’s anguish drives him deeper into recklessness. Like his quarry, he is now consumed with rage and grief and utterly out of control. Knowing Angela and Anna are alone, off plan and entirely off the reservation, Whitey heads to the Worth house, armed. However, once again he finds himself on the back foot. Jack’s back and Whitey finally comes face to face with his target for what may be the tensest family dinner in history. Meanwhile, Elizabeth confronts Gagnon regarding his questionable interest in bringing down Jim Worth. Disturbed by his response, Bradshaw begins to look into the background of the enigmatic Quebecois. As she digs deeper, dangerous secrets begin to emerge regarding her employer’s activities in the region, and she realises her position offers her perilously little protection.

Jack’s excessive reaction to the burgeoning connection between Whitey and Anna succeeds only in driving his daughter further away from him. Once again thrown out of his home, and out of whiskey, a bruised, bloodied, but temporarily sober Jim wakes up to a message from Jack scrawled on the bathroom mirror. Sensing an unnamed danger in Whitey, and intent on seeking revenge for the tragedy perpetrated against her family, Angela makes a shocking decision. Calling on Jack, not Jim, to finish the job of finding the one who tore their family apart, Angela summons the demon of her husband’s dark, alcoholic past. Meanwhile, Elizabeth investigates a lead in the local First Nations Reserve of Reverie, and uncovers a dreadful event North Stream Oil was responsible for.

Despite the ravages of alcohol taking hold, Jack is starting to piece events together. Long-buried horrors from his past are resurfacing, offering tantalising glimpses of the truth of his present. Connecting Frank to the family tragedy, Jack looks to extricate information by applying pressure to his Achilles heel – the local bar owner Randy. Meanwhile, Elizabeth has found an eyewitness who can corroborate Jim’s allegations against North Stream Oil, and attempts to drive her to Calgary to testify. However, Gagnon finds a weakness, and will stop at nothing to ensure all trace of North Stream’s involvement in the allegations is eliminated. As each player seeks to either find the truth or bury it, Little Big Bear descends into chaos, with lethal, explosive consequences.

In an extraordinary episode, we go back 10 years, and across the Atlantic, to meet Jack Devlin, undercover and at the peak of his drug and booze addiction. All the while, Angela and Anna are living a matter of miles away. His operation culminates over one fateful night, leading to a traumatising series of events, the ramifications of which follow him all the way to Little Big Bear.

A trail of broken promises has led to this moment. Jack, upon learning the identity of the killer, abandons any remaining semblance of being the town’s symbol of law and order. Both he and Angela head into the mountains to bring things to a conclusion. For Angela, the goal is to bring a runaway Anna home. For Jack, there is no family, only revenge. And blood will be spilled.

We pick up with the Worths where we left them in series one: Anna clutching Whitey’s gun; Jack bleeding in the snow, losing consciousness; and Angela begging Jack not to die, for Anna’s sake. Horrified at what she’s done, Anna flees. Meanwhile, Elizabeth Bradshaw is drunk and determined to forget past sins. She meets an exceptionally handsome stranger, but her fun is cut short by the delivery of her letter of termination. As what he lives for threatens to fade away, Jack fights for his life.

Anna is taken to hospital by Rosa Nickel and her mother. With little memory of what has happened over the past few days, Jim tries to mend the damage Jack has caused. When he discovers what Anna has done, he realises it’s going to be much harder than he first thought. With her world falling apart, Angela discovers an unlikely ally in Elizabeth Bradshaw.

Pastor Johan crosses into Canada. Anna takes refuge with the Ammonite Nickel family in their strict religious community. Johan returns home, unsettled by Anna’s presence and with a dark secret. Angela is determined to give her daughter space, while Rosa and Sarah are desperate to protect her. Jim finds himself unable to bring Anna back – but can Jack?

Angela and Elizabeth are forced to face some tough questions over the killing of Gagnon, and we see the lengths Elizabeth will go to for self-preservation. Meanwhile, Johan is plunged into crisis and Rosa reveals her plans for the future to Anna. As Johan turns to the Worths for help, is Jack capable of setting aside his hatred for him if it means earning the forgiveness of his daughter?

Rolling back the clock we revisit the same day as episode four. Jack attempts to burn his past as he drinks whisky on the mountainside. Later, he takes the opportunity to win Angela back, threatening the fragile union between her and Elizabeth. But as Jack and Angela find an unconventional solution to the Jaclyn problem, Elizabeth vanishes.

Anna enlists the help of her parents to save Johan and his family. Jack exposes the truth about Johan to the Nickels but struggles with his desire to win his daughter’s forgiveness and his hatred for Johan. We learn the story of the Nickels’ lives in Mexico. But with their past closing in, is it too late to save any of them?