The capsule is carrying Neil Armstrong and Buzz Aldrin, both claiming to have no knowledge of how they arrived in the future or why history records their successful return to Earth in 1969.

On the Moon, Helen, Konrad and Aleksa discover the remains of Armstrong and Aldrin, who inexplicably did not return to Earth, adding to the mystery.

Helen encounters the insane Gagarin, who talks about Werner Heisenberg's Uncertainty principle and claims that the lost cosmonauts and astronauts have merged into the universe's consciousness.

They attempt to subdue and sedate the cosmonauts who fight back and are killed in a gas explosion that consumes the Martian module.

Helen and Aleksa awake after 70 years of cryogenic sleep to discover that fellow astronauts Konrad and Kurt have perished while Alex has disappeared.

The pair are also attacked by an elderly and deranged Alex, who has spent the past decades cobbling together an escape craft to return to Earth.

After being picked up by Russian forces, she is questioned by an American official, who informs her that "Helen" had supposedly returned from her mission and died on Earth 30 years ago.