In October 2008, Filmkameratene AS, a small film production company, received an anonymous package containing two hard drives with a total of 283 minutes of video. The following film is the edited version of that footage.
Three film students from a small college on the west coast of Norway, interviewer Thomas, sound technician Johanna and camera operator Kalle are driving down along the fjords, looking for a man they know only as "Hans" who supposedly is a poacher, responsible for shooting several bears in the area. After a short investigation, they locate Hans' trailer on a local trailer park, and wait around, hoping to get an interview. That evening, a haggard, bearded and scarred man in his fifties arrive at the trailer park in a beaten up Land Rover. Thomas tries to get him talking, but it curtly brushed aside, and told to leave. The man then disappears into the trailer, leaving again that night. The next day, the students arrive at the sight on another bear shooting, where they meet Finn Haugan, who claims to be from the wildlife department. When Thomas confronts him with claims from local hunters that the bear was not from the area, and could not have been shot where it lies, he dismisses the claims as ridiculous. They return to the trailer park to find that Hans is packing up and leaving. They give chase, and catch up with him at another trailer park, where from, in the evening, he heads out in the Land Rover again.
The students follow him and eventually trek into the nearby woods and are about to give up their search, when they hear rumbling in the distance, and see flashes of blue light on the horizon. Seconds later, Hans comes running out between the trees shouting "TROLL!" All four of them race back towards the Land Rover, but Thomas gets bitten by something, and has to be helped back by Hans. Back at the Land Rover, Hans cleans Thomas' wounds and bandage them, and agrees to take them back to their car, only to find it overturned, and demolished. They ask why he shouted troll as he encountered them in the woods, and if he actually believes what did this is a troll, and after some initial denials, Hans agrees to let them come with him when he goes back the next night to kill the thing that attacked Thomas, but only if they agree to follow all his orders without question. He also enquires about whether any of them are Christian, which they all deny. They head into the woods, and Hans leaves them at a marsh, telling them to wait for him there.
The troll hunters
After waiting around for a long while, slowly convincing themselves that Hans has tricked them, and is sitting in the woods, laughing at them. Suddenly, the ground starts shaking, and mysterious noises are heard from beyond the tree line. Suddenly, a three-headed, giant troll emerges in the marsh, chasing Hans who yells at them all to run. They all flee back the way they came, as Hans fires of bursts of ultraviolet light towards their pursuer. After a lengthy scramble, they make it back to the Land Rover, where Hans is waiting. As the monster emerges, he lights the giant floodlights attached to his car, instantly petrifying the troll. Hans remarks that he suspects one of them of believing in God, claiming that the troll can smell the blood of Christians, which they all deny. Hans also reveals that he is a government agent, working on controlling the troll population. When they ask why he would reveal that to them, he tells them that he is tired, and hopes that with their help, he can finally get better working conditions and the help he so sorely needs.
In the morning, as Hans is still demolishing the petrified troll, Finn Haugan arrives, and is livid when he discovers the presence of the camera crew, but Hans stands up to him, and Finn leaves in a huff. After revealing many tid-bits about the work that he does for the TST, the secret agency he works for, Hans takes the students with him to the forest where he believes the troll that bit Thomas. They encounter Finn Haugan again, who is visibly getting agitated at the presence of the camera crew. Hans scouts the area, and decides to lay a trap for the troll, using several sheep as bait. He tethers them on a small wooden bridge, and waits for the monster to return. The trap works, and as the troll is eating one of the sheep, Hans tries to extract a blood sample from the troll, but is savagely beaten. He survives, but only because of the heavily armoured suit he wears. He gets back in his feet, and chases the troll underneath the bridge, and a flash of light later, the troll is killed. After getting the blood sample he was after, he visits a nearby veterenarian who starts analysing it. According to Hans, the troll population is acting strangely, and he hopes the blood sample might yield some answers. After some further investigation, they all arrive at what appears to be the site of another troll sighting. They find a nearby abandoned mine, and decide to investigate. Inside, they find clear evidence of a troll nest, but as they are about to leave, the inhabitants of the nest return. Hans and the students attempt to hide from the trolls, but it soon becomes clear that they can smell them. Camera operator Kalle sobbingly admits to being a believer in God. As they try to flee, Kalle gets killed by one of the monsters.
Determined by the loss of their friend, to reveal the truth to the world, Johanna and Thomas enlists the aid of professional wild-life photographer Malica, and together with Hans
they head into Dovre, a remote mountain range far inland, where the source of the strange troll anomalies is believed to be located. Before that however, they have another run-in with Finn, who is eventually chased off by Hans. They find evidence that a Jotne, the largest kind of trolls, basically a walking mountain, has been venturing outside its natural habitat, and is what is influencing the other trolls to act strange. Once up in the mountains, Hans receives the results of the blood sample he handed off earlier. They show evidence of rabies. Hans, knowing he has to take the giant down, rigs his Land Rover with additional UV lights, and heads out to fight the Jotne. After a long, protracted battle, Hans is able to weaken the giant enough to get close to him, and finish him off with a rocket launcher loaded with a UV grenade. As the troll crumbles, Hans and the others split up, and the students head for the highway, only to be intercepted by Finn and a squad of TST agents. As they try to flee, the camera is suddenly goes dark, and the recording stops.