Smith is a member of the Mountain Warfare Unit (MWU) aboard the Nathan James.
He is first seen as a part of the team under the command of Lts. Green and Benz to retrieve food from the Italian cruise ship. (“Phase Six”)
He and Berchem are seen training the other sailors as a part of Tac Team One and were later assigned to Cobra Team under Lt. Green to retrieve equipment for Dr. Scott. (“Welcome to Gitmo”)
Smith and Berchem later established a perimeter during the meeting between Chandler and Ruskov and were assigned to scout out a mine field blocking the ship path, but were gunned down by Ruskov's gunboat. (“Dead Reckoning”)