Apollo 18 is a found-footage style film set in December 1974, about a post-Apollo 17 mission to the Moon that takes on a premise of why NASA discontinued the Apollo Moon missions. The plot involves a government coverup of the Apollo 18 mission after parasitic lifeforms on the Moon are discovered by the crew and begin to attack them. In the trailer, an American astronaut discovers the foot prints made by a Soviet cosmonaut and also found a helmet, a dead cosmonaut, and a Soviet LK Lander on the lunar surface.