Back on Vorton, Andy and his friends return with the Arkenstone before the former gets a phone call from Grand Emperor Enoch through Dean's phone. Enoch tells Andy that he "found" his brother and told him to wait for the later to come get him. Vaden informs the heroes that their next Foundation Element is the Inanimate Carbon Rod and opens the rift.
When the heroes arrive at Springfield, an angry mob of townspeople walk to the Simpsons' House and began to ransack them. When Andy and his friends find out that an angry mob is active, something is definitely wrong. Chief Wiggum approaches them and tells them that Homer Simpson polluted Springfield's lake with his pig crap silo. The heroes then split up once they reached Lake Springfield. Braum and Braun use the Locate Keystone to summon Luigi's Poltergust 3000 and use the Scale Keystone to increase the height of it. They clean the lake using the giant Poltergust 3000 and sends the waste away into the vortex. When they reached the Springfield Nuclear Power Plant, a Mega Rift appeared above the dome and began to suck it in. The Springfield folk began to notice this and began cheering for freedom. This was short-lived however as the dome breaks, causing large shards to fall onto the city streets, buildings, and more. Andy realizes that the Foundation Element is carried by Homer the whole time and runs through the city surviving shards of glass to the Simpsons' House. Unfortunately for them, Homer escapes with his family and the heroes return to Vorton.
- The level takes place during the events of the Simpsons Movie, but it is unknown why it takes place during this time.
- This is the first level that features Springfield and the Springfield Nuclear Power Plant, the second is Bartman Forever, making Springfield and the Nuclear Power Plant the most visited location in the game.
- Archive Audio from The Simpsons Movie is used during the cutscenes. Hank Azaria reprises his role as Chief Wiggum during the cutscene where he meets Andy, Elizabeth, Christina, Don, Braum, Braun, Walter, and Hugo.