ROCK HILL – Lancaster High’s defense has been the Bruins’ bright spot in the preseason.On Saturday, the LHS defense delivered late to give the Bruins a scoreless tie with Class A foe Great Falls in the Herald Jamboree at District Three Stadium.GFHS, the Class A Division II state runner-up last season, mounted a last-ditch drive to the Bruins’ 12 where the drive stalled.On fourth-down, Red Devils’ quarterback Gaither Bumgardner, who had engineered the drive, came on to try a 29-yard field goal, but the line-drive attempt was