Songfacts®:

• Opening Twenty One Pilots' eighth album, Breach, "City Walls" functions as the grand finale to the Dema storyline that's been unspooling since Blurryface in 2015. Sung through the eyes of Clancy, Tyler Joseph's alter ego, the track dramatizes his fight on two fronts: against the authoritarian grip of Dema, and against the inner fog of doubt, fear, and self-sabotage.
• The "city walls" stand for both the external barricades of control and the internal barriers of fear, doubt, and isolation. "Show me the way around those city walls," Clancy pleads, only to discover he's been "abandoned by the sun," a devastating image of reaching for guidance that never arrives. The imagery of confrontation and breaking through, symbolized by the titular breach, makes the track feel like a battle cry for anyone who's ever wrestled with their inner demons.
• The song and its accompanying video bring closure to the narrative involving characters like Clancy and the Torchbearer that has been developed across multiple albums. Tyler Joseph described the track as "the soundbed for that final part of the story."
• "City Walls" contains deliberate callbacks to earlier Twenty One Pilots tracks, creating connections throughout their discography. Fans have noted references to "Polarize," "Migraine," and "Holding On To You."
  
  The outro of "City Walls" also samples the intro of "Heavydirtysoul," the opening track from Twenty One Pilots' 2015 album Blurryface, creating a full-circle moment that connects the beginning and end of their extended narrative arc.
• Tyler Joseph wrote and produced the song with longtime collaborator Paul Meany, the lead singer and keyboardist for the rock outfit Mutemath.