400 Days

The team of four astronauts, consisting of Captain Theo Cooper, Dr. Emily McTier, Bug Kieslowski, and Cole Dvorak, begins their 400-day-long simulation on Earth. The purpose of this simulation is to study the long-term effects of space travel, marking the start of their isolated journey.

As the days progress, the crew begins to experience extreme psychological effects, including paranoia and hallucinations. They withdraw further into their separate spaces, struggling to cope with the challenges of isolation and the pressures of their mission.

The equilibrium of their isolated existence is shattered when a disheveled man suddenly appears in their simulated spaceship. His unexpected presence introduces an ominous turn of events, igniting fear and uncertainty within the crew.

After the man escapes, the crew decides to leave the confines of their simulation and explore the surface. They emerge into a world that is dark, windy, and desolate, revealing a landscape covered in dust and eerily transformed.

During their exploration, the astronauts stumble upon a town called 'Tranquillity'. To their surprise, the town is inhabited, and they find a diner where they meet a man named Zell, who shares unsettling news about the world outside.

Zell informs the crew that a catastrophic event struck the moon, leading to a massive dust cloud that now blocks out the sun. This revelation further fuels doubt in Dvorak, who remains convinced they are still in a simulation and brushes off the warning.

Despite the foreboding atmosphere, the crew heads to a local bar for drinks. Dvorak decides to leave with a young woman, prompting the rest of the crew to return to the diner for the night after questioning his decision.

While on watch duty, Bug starts hallucinating that he is following his son, Sam. This unsettling experience culminates in him crossing paths with Zell, foreshadowing the chaos that is soon to unravel.

When McTier and Cooper wake up alone, they become increasingly worried about their missing friends. Their concerns grow when Zell claims that Cooper and McTier arrived solo, leading them to suspect foul play.

Realizing the gravity of the situation, Cooper and McTier leave the diner in search of their friends. Their search is in vain, as they fail to locate anyone, heightening their sense of danger as they attempt to piece together the events.

Upon returning to their ship, Cooper discovers they are being followed by Zell and two other men. A tense confrontation ensues, and Cooper and McTier are compelled to defend themselves against the attackers.

The confrontation reaches a climax when Zell is fatally wounded. This pivotal moment aligns with the conclusion of their simulation, as the crew is suddenly informed that their 400 days have successfully come to an end.

With Zell dead, the simulation officially concludes, and the entrance hatch of their ship opens, revealing bright light. The crew, particularly Cooper and McTier, stand ready for what lies ahead, filled with anxiety and anticipation.

As Cooper and McTier hold hands and wait for the unknown, the film leaves viewers in suspense. The screen fades to black, leaving the fate of the astronauts and the reality of their situation open-ended, inviting interpretation.