The story revolves around a 13-year-old girl named Sarah who, after making a wish to trade places with one of her teachers for a day, finds herself in the body of Mrs. Davis, a strict math teacher. Sarah discovers that Mrs. Davis is involved in a scam with the school's principal, Mr. Hopkins, who is embezzling donations from the school.
Sarah, now in Mrs. Davis's body, decides to expose the scam by leaving notes in Mrs. Davis's classroom. However, Mrs. Davis becomes suspicious and confronts Sarah, leading to a heated argument. Sarah is then kidnapped by Mr. Hopkins, who threatens to harm her.
Mrs. Davis, who had been acting strangely, arrives at Mr. Hopkins's house to confront him. She discovers Sarah's kidnapping and calls the police. The police arrest Mr. Hopkins, and Sarah is taken to the hospital.
Upon waking up in the hospital, Sarah learns that she has been missing for two days. Mrs. Davis explains that she had found the electronic bug in her bag and called the police. The police had then traced the electronic bug to Mr. Hopkins's house in the woods.
Mr. Davis, Mrs. Davis's husband, arrives at the hospital, having been looking for Mrs. Davis. He expresses his disgust with Mrs. Davis and her involvement in the scam. The story ends with Mrs. Davis telling Mr. Davis that she has moved out and that he won't get any more of her cooking.
1. Sarah, a 13-year-old student, wakes up in Mrs. Davis's house.
2. Sarah, now a math teacher, discovers a note in Mrs. Davis's closet.
3. Sarah, in Mrs. Davis's clothes, heads to school, where she surprises her students.
4. Sarah decides to take her students on a field trip, which is met with hesitation and surprise.
5. Sarah, pretending to be Mrs. Davis, calls the school bus driver and takes the students to an amusement park.
6. Upon returning to school, Sarah is confronted by the principal, Mr. Hopkins, and the students' parents.
7. Sarah learns that Mr. Hopkins is stealing from the school's donations and that Mrs. Davis is involved in the scam.
8. Sarah discovers that Mrs. Davis has a boyfriend, Mark, and that Mr. Hopkins is blackmailing Mrs. Davis.
9. Sarah confronts Mark, who doesn't know anything about the scam.
10. Sarah leaves a note for Mrs. Davis, warning her that she knows about Mr. Hopkins and the scam.
11. Mrs. Davis confronts Sarah, threatening her and warning her to stay away.
12. Sarah is kidnapped and taken to an old house, where Mr. Hopkins is waiting.
13. Mr. Hopkins threatens Sarah, demanding she look over the accounts of the last donation.
14. Mrs. Davis arrives at the house, rescuing Sarah from Mr. Hopkins.
15. The police arrive at the house, leading to Mr. Hopkins' arrest.
16. Sarah is taken to the hospital, where Mrs. Davis is by her side.
17. Mrs. Davis explains that she found the electronic bug in her bag and called the police.