Acord enlisted in the United States Army in World War I and served overseas. He was awarded the Croix de Guerre for bravery. At war's end, he returned to the motion picture business, appearing in a series of popular film shorts and as "Buck Parvin", the title character for a Universal Pictures serial. Because of a heavy drinking problem and his inability to adapt to the advent of talkies, Acord's film career declined and he ended up performing in road shows and mining in Mexico. In March 1928 Acord was seriously burned in an explosion at his home; the loss of his sight was feared.