In Heller II, the sequel to 2008′s landmark Second Amendment case, District of Columbia residents and officials again go to battle over the city’s gun laws.

And like any good sequel, many of the main characters are back: There’s Dick Heller, the lead plaintiff in the first Heller v. District of Columbia case, who is fighting to overturn the city’s firearm regulations. The Brady Center to Prevent Gun Violence, represented by Wilmer Cutler Pickering Hale and Dorr, is helping defend them. And the case is winding through the U.S. District Court for the District of Columbia, where the first fight also developed. A few players are sitting out this fight, including Alan Gura, who argued the original Heller case before the U.S. Supreme Court. But the case has many of the hallmarks of the first.