The Mercury Men is a 2011 series of web shorts produced for the Syfy network by writer/director Christopher Preksta.
[1] It is shot in a retro, 1950s style, in black and white (stock photos of Apollo are in color).
The tenth episode is stated as taking place in 1976, but the month and day are unspecified, so it is not clear exactly how much time has lapsed between the ninth and tenth episodes, though it must be significant, as the protagonist somehow travels from Earth to Mercury in that time.
Their plan is to use the steel framework of the building to enhance their gravity device which will pull down the Moon into the Earth.
He meets Jack Yaeger (Curt Wootton), a member of a secretive group of defenders known as The League.