The Storm

 is the nineteenth and final episode of the third season and the fifty-seventh overall.

Synopsis
O'Malley berates Lopez for creating such a slow moving army. In revenge, Lopez tricks O'Malley into insulting himself in Spanish. The Reds flee the battle in the Warthog to track down the distress signal. Donut is left behind to discourage pursuit, but manages to steal O'Malley's hovercraft and rejoin his teammates. Tex steals Tucker's sword so she can fight the robots; Church decides that she must be The Great Destroyer from the prophecy. An unseen figure wipes out O'Malley's army with a volley of plasma grenades, and then attacks a startled O'Malley. Lopez's fate is left unrevealed.

Shortly after Donut catches up with the other Reds in a cave, Simmons and Grif track the signal out of the cave, finding themselves back in Blood Gulch (Coagulation in Halo 2). This discovery is accompanied by a lengthy scream of "Noooooooooo!" from Grif. Back at the fortress again, Church and Tucker admire the slaughtered robots and congratulate Tex, but she admits she's not responsible: she was in the basement, trying to get the sword to work. Church rushes over to Gary to question him about the identity of The Great Destroyer, unaware that an Alien is sneaking up on him.