Dominic Blizzard's second-half goal saw Plymouth register their first away win of the season at Luton.The midfielder danced his way through the Hatters' defence in the 68th minute before finding the bottom corner with a measured finish past home goalkeeper Mark Tyler.Defeat was harsh on Luton who had the better of the first half, with Luke Guttridge's early free-kick palmed over by Plymouth goalkeeper Luke McCormick.McCormick then denied Jake Howells twice, the second stop a superb reflex save with his legs as the Luton midfielder was clean through.Plymouth's best opportunity fell to Lewis Alessandra, but when faced by Tyler, the Plymouth midfielder shot tamely at the Luton keeper, while striker Reuben Reid's effort was also kept out with a full-length save.In the second period, Argyle came into the game more as Luton's influence waned, with Reid a constant menace.The visitors eventually broke the deadlock through Blizzard and then easily withstood Hatters' late pressure.Substitute Ross Lafayette wasted Luton's best chance when he fired wide from the edge of the penalty area.