Adventures in Baby-Getting

"Adventures in Baby-Getting" is the third episode of season 24, scheduled to air on October 21, 2012, but was pre-empted by Major League Baseball playoffs. It will feature guest star Jeff Gordon as himself.

Synopsis
Marge gets the car of her dreams - until her dreams start including the possibility of a fourth child, since the car only seats five. Meanwhile, Bart and his friends investigate why Lisa is receiving coded messages and sneaking off to meetings in town after school.