For many years our radio has kept us informed of events on Earth and my men there have advised me of your every move.
7 seconds sound clip from the Radar Men from the Moon - Moon Rocket (S1E1) movie soundboard.
You can hear this line at 00:16:52.630 in the Blu-ray version of the movie.
Quote context
[...]
- You are going in the right direction, Earth man. Enter the first door you come to.
- Turn the control, the door will open.
- I am Retik, ruler of the Moon.
- Apparently you are expecting me.
- I see you have adopted our language.
- You mind telling me why your men are carrying out that campaign of destruction on Earth?
- They are merely softening up your defenses for our impending invasion.
- Why do you want to invade the earth?
- And none of us can move outside without helmets.
[...]