A civilian oil rig crew is recruited to conduct a search and rescue effort when a nuclear submarine mysteriously sinks. One diver soon finds himself on a spectacular odyssey 25,000 feet below the ocean's surface where he confronts a mysterious force that has the power to change the world or destroy it.

Un equip de científics és enviat a investigar una estranya esfera situada en una nau submergida a l'oceà. Però una terrible tempesta els sorprèn.

Underwater deep-sea miners encounter a Soviet wreck and bring back a dangerous cargo to their base on the ocean floor with horrifying results. The crew of the mining base must fight to survive against a genetic mutation that hunts them down one by one.

Pioneer is set in the early '80s, at the beginning of the Norwegian Oil Boom. Enormous oil and gas deposits are discovered in the North Sea and the authorities aim to bring the oil ashore through a pipeline from depths of 500 meters. A professional diver, Petter, obsessed with reaching the bottom of the Norwegian Sea 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's pulling the strings. Gradually he realizes that he is in way over his head and that his life is at stake.