PIONEER is set in the early 80's, at the beginning of the Norwegian oil boom. Enormous oil and gas deposits are discovered in the North Sea, authorities aim to bring the oil ashore through a pipeline 500 meters deep. Petter, a professional diver, is obsessed with reaching the bottom of the Norwegian Sea. Along with his brother Knut, he has the discipline, strength and courage to take on the world's most dangerous mission, but a sudden, tragic accident changes everything. Petter is sent on a perilous journey where he loses sight of who is pulling the strings. Gradually, he realizes that he is in way over his head and that his life is at stake.