Beau Garret appears as Gem, one of four programs known as Sirens. The Sirens operate the Grid's game armory, equipping combatants with the armor needed to compete in the games, while also reporting to Castor
Sam is sent to "the Games," where he is forced to fight a masked program named Rinzler. He is outfitted and given a brief hint on what to do by a Siren called Gem. Clu nearly kills Sam in a Light Cycle match, but Sam is rescued by Quorra, an "apprentice" of Flynn, who conveys him to his father's hideout outside Clu's territory.
Having gained complete control, Clu sent the message to Alan in order to lure Sam onto the Grid and reopen the Portal for a limited time. As Flynn's "identity disc" is the master key to the Grid and the only way to traverse the Portal, Clu expects Sam to bring Flynn to the Portal so he can take Flynn's disc, go through the Portal himself, and impose his idea of perfection on the human world.
Against his father's wishes, Sam returns to Clu's territory on Quorra's tip-off to find Zuse, a program who can provide safe passage to the Portal. At the End of Line Club, its owner Castor reveals himself to be Zuse, then betrays Sam to Clu's guards. In the resulting fight, Flynn rescues his son, but Quorra is injured and Zuse gains possession of Flynn's disc. Zuse attempts to bargain with Clu for the disc, and one of his minions attempts to flirt with Gem. Gem rolls her eyes and bats her eyelids. Clu simply takes the disc and destroys the club along with Zuse and Gem.
Sam Flynn : What am I supposed to do?
Siren Jem : Survive.