The Haw-Haw Land Promotional was the thirty-first promotion for The Simpsons: Tapped Out. It was released on January 3, 2018. Players had until January 15, 2018 to complete its main questline STEM Vs. Them.
When the Simpsons go to a STEM conference, Lisa falls for a crooning jazz pianist named Brendan. Meanwhile, Bart discovers that he has an affinity for chemistry.