Narthax was among the stormtroopers who reached the base itself, pursuing the Alliance forces who were desperately evacuating their base. His helmet-mounted sensors ready to catch any unsuspecting Rebels, Narthax and his group ran into a corridor containing a heavily shielded pen where, unbeknownst to the troopers, the Alliance had previously quarantined some of the planet's predatory and carnivorouswampas. The Alliance's 3PO-series protocol droidC-3PO, who was attempting to escape, stopped to tear off the warning label on the door to the pen before disappearing around another bend in the corner. Narthax and his group reached the door, and the Sergeant punched in the code on the door's control panel. The door slid open, and the troops filed in with military efficiency, to be subsequently attacked and killed by the wampas within the room. Darth Vader later reached the room to discover a cave-in exposing the room to Hoth's daytime sun, along with the bodies of Narthax and his squad under piles of blood-stained snow.[2]
A sergeant in the Stormtrooper Corps, Narthax trained snowtroopers in extreme-weather survival tactics.[1] He was one of Darth Vader's most well-trained and season troops by 3 ABY. When he punched in the lock-code leading to the wampa pen, he savored the moment, believing it would take more than locks to stop the Imperial invasion. He and his group filed into the room with military efficiency, unaware they had stumbled upon the wampas that would kill them.[2] Narthax wore full snowtrooper armor, and his equipment included an E-11 blaster rifle.[1]