1969. While a family ‘s listening to the television that says the words: One small step for a man one giant leap for mankind, a misterious figure in a space suit steps in their house to tell them the truth about the moon landing.

Agreed. Solid stories tell interesting stuff about characters surrounded by the fun and games. Focus on them and then the hook and take it as far as needed so that the potential audience wants to know more.

Agreed with DPG and Richiev.

Check out the 'Formula' tab on the top bar for more information about basic logline construction.

I agree with dpg, he makes some very good points.

Along with what he said, why is this news important to the lead character? (And why would the lead character even believe it)
What I mean is, I have friends who have told me that the moon landing was fake, I shrug my shoulders and move on. (I'm not really big on conspiracy?theories)
There was even a movie that about a 'fake' moon landing.
So why is this news life changing to the lead character?