Some of the crew members meet the Atlantis expedition.

The Lantean Aurora-class battleship Tria housed a crew consisting of Captain Helia and 328 other Ancients.


The crew attacked several Wraith cruisers when they were recalled to Atlantis. However, they missed the evacuation through the Stargate so they decided to travel to Earth in hyperspace. However, due to battle damage, the ship's hyperdrive stopped working so the crew were forced to continue for the maximum of sublight speed at 99.9% light speed. Although they travelled through the void between Pegasus and the Milky Way for 10,000 years, due to relativity and time dilation at that speed, at their perception only several years went by.

They were rescued by the Daedalus in 2006 during their experiment with the McKay/Carter Intergalactic Gate Bridge, and then taken back to Atlantis, where the crew took control of it, expelling the Tau'ri Atlantis expedition, along with the Athosians who were residing in the mainland. When the Asurans approached Atlantis, the Lantean crew were certain they would not attack due to a directive that would prevent the Asurans from attacking their creators. However, due to Doctor Rodney McKay's tampering of their base code, the Asurans continued and killed all the Tria crew members. The Asuran invasion of Atlantis would ultimately end thanks to the intervention of Lieutenant Colonel John Sheppard and his team. (SGA: "The Return, Part 1", "The Return, Part 2")

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