Stargate Atlantis (Alternate History) v2.0

Surely someone knows such a series as Stargate: Atlantis. Now imagine that Atlantis is found not by the government of some country, but by a simple guy who has the so-called Ancient gene. Since this is an alternative history, I changed a few things here, slightly reworked some things, but otherwise did not touch anything. As they say, in an alternative history everything is possible!)