The first game of the trilogy, 2007's Mass Effect, marks Tali's first appearance. Whilst on her Pilgrimage, Tali discovers that a rogue Spectre (elite agent of the galaxy's central government), Saren, is working with the geth and has attacked Eden Prime, humanity's first space colony. She arranges for a meeting to trade with the Shadow Broker, but is betrayed by its organizer, the thug Fist, who pretends to organize a meeting but instead has sent her into an ambush. Commander Shepard, the player-character, rescues her. Tali gives the evidence to the Commander, and Saren consequently loses his Spectre status. Shepard is then sent to hunt down Saren, and Tali joins the player-character's squad. Tali can join the player-character on missions and is available for personal conversation aboard Shepard's spaceship, the Normandy.