In the track "D.O.H," Homer Simpson falls victim to the Pibby Corruption, a force from Friday Night Funkin (FNF). Unfortunately, it's too late for anyone to save him. However, Bart steps in as a survivor, joining forces with BF to engage in a rap battle against their father, Homer. As the corruption manifests within the Simpson household, it becomes evident and looms ominously behind Homer. BF begins to experience partial corruption but fights to resist its grasp, while Bart must join him in song. Will Bart and BF manage to rescue Homer and the rest of Springfield from this impending doom, or is this the final chapter in their struggle against the corruption, leading to the downfall of everyone?