Decades-old found footage from NASA's abandoned Apollo 18 mission, where two American astronauts were sent on a secret expedition, reveals the reason the U.S. has never returned to the moon.

Nate: Get it out. It's so cold. Get it out, Ben. Get it out, get it out! Damn it Ben get it out!
Nate: [in hammock] Fate has ordained... the men who went to the moon to explore in peace, remain on the moon to rest in peace.
[turns suddenly to face camera]
Ben Anderson: [filming Nate] What are the hell are you talking about?
Nate: I feel my thoughts... fragmenting.
Deputy Secretary of Defense: [over comms to Ben] We're aware of your condition, and we've made a decision. We can't bring you home.
Ben Anderson: [shouting hysterically into comms] I did mine! You do your job, you get me home!
[pause]
Ben Anderson: Houston, please.
Deputy Secretary of Defense: We'll stay on this channel with you, but this decision is final. You've done a great service for your country, son... and for mankind.
Ben Anderson: [over comms] Please, please listen to me uh... listen to me. Um, listen to me... I... I have a family. I need my family, please.
Deputy Secretary of Defense: We'll let your family know you died a hero. I'm sorry, Ben.
Deputy Secretary of Defense: [over comms] John, you are ordered to abort rescue immediately. Captain Anderson is a high contamination threat. You will not recover him.
John Grey: You knew something was down there and you sent them anyway.
Deputy Secretary of Defense: [over comms] DOD to Freedom, if you do not abort in T-minus 60 seconds, transmission will terminate. You will not receive an updated state vector. You will run out of life support package. You will not return home. You have 45 seconds to abort this rescue.
Nate: I'm getting worse. Ben... you gotta leave me here.
Ben Anderson: No.
[pause, fiddling with landing module's controls]
Ben Anderson: No one's leaving anyone.
Nate: You'll have to.
Ben Anderson: We are not dying up here.