The first look at the new bad guys from the upcoming Stargate Atlantis two-parter is here!

Little is known about this new Pegasus Galaxy race (including their name), who will make their first appearance in the September 26 episode “First Contact.” But if spoilers and speculation that is circulating online pan out, they may have a connection deep into the history of Stargate mythology.

The new photos from the two-parter show that Atlantis not only encounters the beings, whose warriors are fully covered in advanced armor, but also capture one and attempt to open the suit.

The species is also expected to appear in “The Lost Tribe,” the conclusion to the mid-season two-parter, which will air on October 10 (after a one-week break).

According to the episode synopsis from SCI FI, after Drs. Rodney McKay and Daniel Jackson (guest star Michael Shanks) find a cloaked lab in Atlantis, “they unwittingly activate a signal on a distant planet. Hours later, the city is paid a visit by a group of mysterious aliens.”

Whether or not we will see the new bad guys again in this, the final season of Stargate Atlantis — or in the upcoming TV movies — is unknown. But a season finale with a title like “Enemy At the Gate,” and the producers’ indication that the new bad guys are a significant addition to the Atlantis mythology (and not just a one-off, like the alternate reality warriors in “The Daedalus Variations”) make it very possible that we will see them again.

Check out more photos from “First Contact” and “The Lost Tribe” in the Stargate Image Gallery, and visit GateWorld’s Season Five episode guide to read more about these episodes!

Stargate Atlantis airs Friday nights at 10 p.m. (9 Central) on SCI FI Channel through this month. Starting October 10, the show moves up an hour to 9 p.m. (8 Central).

(Thanks to Andreas for the photos!)