The Simpsons' house begins sinking into the ground. Marge decides to earn extra money to repair the foundation by working at the Springfield Nuclear Power Plant and Homer is dismayed about having to work alongside his wife. However, Mr. Burns falls deeply in love with her and begins to seduce her. However, Marge resists and Burns fires her after discovering she is married. Homer stands up for Marge and an impressed Mr. Burns treats them to a free Tom Jones concert. Meanwhile, Bart continually fakes sick to get out of taking a test.