The animated sitcom follows the quirky Simpson family, consisting of Homer, a beer enthusiast, and Marge, a devoted homemaker, along with their three children: Bart, a mischievous underachiever, Lisa, an intelligent and underappreciated 8-year-old, and Maggie, a gentle baby reliant on her pacifier.

Bart's long-lost twin begins to manifest in the attic, while Lisa's experimen...