While Neal Clark was in Cascade City to see the gunsmith, the Shelly gang, lead by Buck Shelly, attempted to hold up the bank. Neal rushed out of the shop and fired repeatedly, killing Buck Shelly and his son, Luke. He may also have hit Buck's teenage son, Ed, who escaped mortally wounded. At least, that's what Neal thought--until he received a letter from Ed declairing that he'd be back to settle the score.