A new nightmare is haunting Emmerdale, when Cain Dingle – a man who is usually quiet and tough – has lost control.

After the suspicious death of his son Nate, Cain believes that the killer is John Sugden – who was once a close friend but is now a sworn enemy.

Hatred and pain have turned Cain from a family man into a cold-blooded hunter, determined to take revenge for justice himself.

The story begins when Cain receives a clue that John is still somewhere in the Dales forest.

He drives in the middle of the night, carrying his father’s old gun, in the pouring rain. The image of Cain stepping out of the car, the headlights shining on his cold face, his eyes blazing – makes the audience shiver. In his mind, there is only one goal: John must pay.

At the same time, Tracy – Nate’s ex-wife – also started her own investigation. She discovered an old recording of John, where he accidentally talked about Nate’s “accident” in a spiteful tone. Tracy immediately called Cain, asking him to calm down and let the police handle it. But Cain sneered: “The law here can’t do anything to him.” That sentence seemed to conclude the upcoming revenge plan.

In the rainy night, Cain came to the forest where John used to hide. He set a series of small traps, shining a flashlight on each tree trunk. Suddenly, a green laser flashed – John was on the opposite side. The two men looked at each other in the dark, their eyes like two predators. The chase began. The sound of branches breaking, the sound of gunshots, and Cain’s frantic scream: “You won’t escape me, John!”

The climax was when Cain slipped and fell into the dry, cold stream. John stepped closer, smiling faintly: “You are becoming a murderer like me.” Cain screamed, rushing forward – but John disappeared into the darkness. Only the bloody handkerchief remained, evidence of an endless confrontation.

At the end of the episode, the audience only saw Cain standing by the stream, drenched, panting in despair. He had reached the boundary between justice and sin, between humans and demons. Can Cain turn back, or will he continue to fall into a spiral of revenge with no way out?