Mrs. Sanders and her husband go to Fat Camp to see how their son is doing. After discovering that he has not lost any weight, they decide to take him out of camp and call all the campers' parents to come and fetch their children. Later in the episode, their son reveals that Eric Cartman was selling candy to campers without the counselors knowing. Then they, along with the other parents, give the counselors another chance, and leave their child at the camp.
Mrs. Sanders wears a dark pink dress and has long red hair and red lipstick. Like all other campers' parents, she's obese.