Nancy Does Dallas is the 13th episode of the the 13th season of King of the Hill and the 248th episode overall. It originally aired on March 22, 2009.
Nancy yearns for a more meaningful career after her producer tosses one too many fluff piece assignments her way. Transforming a story about a kid bringing his pet possum to class into a panic-inducing exposé on the lack of security in schools, she receives a job offer that takes her to a major news station in Dallas. The panic is so far-reaching that Tom Landry Middle School begins teaching self-defense classes, and Bobby and Joseph appoint themselves as security monitors for the neighborhood. Dale and Joseph react with enthusiastic support to Nancy's career advancement, though it means that the two of them will be on their own with Nancy away in Dallas.
Nancy quickly falls in with the newsroom’s backstabbing, hard-partying ways. Developing a fondness for drinking, she teams up with her co-anchor Gwen Saint James to get rid of the lead anchor Wade Bixby and ride the station's float in an upcoming parade without him. But when she invites Peggy and Minh to a gathering of high-profile Dallas personalities, she reveals to their appalled astonishment that her ulterior motive is to get both Wade and Gwen fired and take over by herself. Meanwhile, without Nancy around to keep him in check, Dale becomes enmeshed in his various conspiracy theories, and while using an array of air conditioners to attempt to acclimate himself and Joseph for a hypothetical ice-age he blows his house’s circuit breaker. He sneaks into the Hills' home to steal their electricity, only to be assaulted by Bobby, who mistakes him for a prowler and causes a bookcase to fall on him, breaking his leg. Hank and Peggy's pleas for Nancy to return home at this point fall on deaf ears, as Nancy has meanwhile successfully schemed her way into a position on the station's parade float, riding solo.
On the day of the big parade, Nancy arrives drunk, and in her alcoholic stupor eventually tumbles off the float in full view of the cameras of every news source in town. Having disgraced her new station, she is fired and sent back to Arlen, where she at least manages to get her old job with Channel 84 back. She begins plotting her next move immediately, thinking to squash the local competition until she’s offered a spot in Houston. But Dale's latest mishap distracts her, and Peggy and Hank come to the realization that taking care of Dale keeps Nancy too busy to be as backstabbing and ruthless as she had been in Dallas, and that Nancy actually needs Dale to get into trouble more than Dale needs her to bail him out.
- Hank Hill
- Peggy Hill
- Bobby Hill
- Nancy Gribble
- Dale Gribble
- Bill Dauterive
- Jeff Boomhauer
- Joseph Gribble
- Coach Kleehammer
- Minh Souphanousinphone
- Bret Winslow
- Gwen St. James
- Wade Bixby
- Tom Chick
- Wade Bixby: "I'M WADE BIXBY!"
- The episode's title alludes to the 1978 adult film Debbie Does Dallas.
- Dale is revealed to be completely fluent in Russian, as also shown previously in the episode "Tankin' It to the Streets".