Dr. Samantha Unger (played by Embeth Davidtz), the CEO of Europa Ventures, recounts the ambitious saga of the Europa One mission, marking humanity's inaugural venture into the deep expanses of space. This mission seeps into the hearts of six brave astronauts, determined to explore Jupiter's enigmatic moon, Europa, in search of life. Previous robotic missions had unearthed thrilling evidence of liquid water hidden beneath Europa’s ice crust and intriguing heat signatures in the region known as Conamara Chaos, hinting at the possibility of mono-cellular organisms.
The crew consists of an array of specialized individuals: the mission's leader, William Xu (Daniel Wu), the adept pilot Rosa Dasque (Anamaria Marinca), the insightful chief science officer Daniel Luxembourg (Christian Camargo), marine biology science officer Katya Petrovna (Karolina Wydra), the junior engineer James Corrigan (Sharlto Copley), and the seasoned chief engineer Andrei Blok (Michael Nyqvist), who possesses unparalleled experience with 349 days in space.
Their spacecraft, an impressive structure, comes equipped with a variety of modules, including crew quarters that simulate gravity by rotating around a core module. The initial months are filled with mundane tasks: exercising, making routine repairs, and the inevitable adjustment to the crew's diverse personalities.
However, after six months of a relatively peaceful journey, disaster strikes when a solar storm disables their communication with mission control. Dr. Unger narrates how all contact with Europa One vanished for 16 months following this catastrophic event, which was documented through extensive, recently declassified footage.
As the narrative turns back to the ship post-solar storm, Captain Blok and Engineer Corrigan undertake an EVA to address the ship's communications failure. In a harrowing accident, Blok’s suit is damaged while they attempt to remove failed panel components. Realizing Corrigan is contaminated with Hydrazine, Blok faces a heart-wrenching decision. He tries to save Corrigan, but the oxygen deprivation overcomes him. In a moment of despair, Corrigan heroically pushes Blok into the airlock, ultimately sacrificing himself and drifting away into the void.
This heartbreaking loss leaves the crew in a state of despair, acutely aware that their survival remains unknown to those on Earth. After twenty long months, the crew reaches orbit around Europa, and their lunar lander descends but overshoots its original target site, landing 100 meters away due to unexpected geological eruptions.
With the absence of their engineer Corrigan, Blok steps up, and together the crew begins to drill through the thick ice. They successfully deploy a probe deep into Europa’s ocean, but their efforts are thwarted by a sequence of seismic activities from the moon’s shifting surface. Amidst the cold and darkness, Blok starts witnessing a mysterious light that no one else can confirm.
The peril escalates when their probe mysteriously loses contact with the ship after being struck by an unidentified object. Petrovna, undeterred, insists on venturing outside to collect surface samples, despite previous warnings of radiation exposure. As she bravely approaches a mesmerizing blue light, the ice beneath her shatters, plunging her into the depths, leaving her final moments captured on her camera.
In a tragic turn of events, the crew navigates back to their ship only to find their engines have failed. In a desperate measure to reduce crash impact, Xu sacrifices himself while attempting to correct their course, ultimately leading to a dangerous crash landing. The already damaged vessel begins to sink into the instable ice.
Realizing the dire situation, Blok and Luxembourg suit up to attempt repairs, but Luxembourg meets a similar fate as he falls through the ice. Blok manages to restore communications, but at the brink of conceding to despair, he is also claimed by the ice.
With alone time ticking down for Dasque, she re-establishes contact with Earth, transmitting vital images and data before the lander succumbs to the icy abyss. Knowing her end is near, she makes a daring choice to open the airlock, exposing the interior to freezing water in hopes of revealing the source of the enigmatic blue light. Her camera captures a breathtaking sight of a tentacled, bio-luminescent entity before the transmission ultimately ceases.
In a poignant epilogue, Dr. Unger affirms that the crew of Europa One not only survived but also stumbled upon profound discoveries of life, surpassing all expectations, as the audience is treated to footage of the crew’s initial excitement captured during happier times.
