The Archaeons were an ancient race of glob-like beings that lived on the Moon. They were seeding the Earth with life about 450 million BC, using a large cannon that shot red lightning. After escaping Gallifrey in a stolen TARDIS, the First Doctor and Susan (with unintentional stowaway Stoyn) arrived on the Moon during the seeding process. When the Archaeons triedy to disassemble the TARDIS, they unintentionally created a stasis field which froze them all until human explorers from the Giant Leap Base freed them millions of years later.

Blaming the Doctor for ruining their experiment, they planned to eradicate the disorderly humans on the Earth and Moon. However, the humans retaliated with missiles, destroying the Archaeons. (AUDIO: The Beginning)

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