Thirteen-year-old Sully Stringfellow has always admired the great plumber heroes of Nitro City. These wrench-wielding warriors guarded the sewers—until they were discredited by the powerful Ironwater Corporation, which has a sinister scheme to take over the city. Without the plumbers, Nitro is being overrun by mutant creatures—and things are about to go totally nuclear thanks to the potentially explosive 50th Anniversary Burrito Festival!
It's up to Sully and a league of long-forgotten plumber heroes to save the day, making it safe for all to flush again. It's a dirty job, but someone's got to do it!