-
Nikki starts writing in her new diary, and Mackenzie freaks out because of a bug in her hair.
-
Nikki accidentally ruines her friendship with her crush, Brandon.
-
Nikki´s sister, Brianna, brings a goldfish from school to home and accidentally kills it with a bubble bath.
-
Nikki and her mother are going to the pet shop for a new goldfish, but Nikki sees Brandon outside and thinks the rumor that he kissed her for some pizza is real!
-
Nikki and her friends are calling the pizza shop where Nikki saw Brandon. They want to find out if the rumor is true or false, but it is true...
-
Nikki gets a website for her advice column, Miss Know-it-all
-
Mackenzie finds Nikki's diary and writes in it about her day.
-
Mackenzie finds out how mean Nikki writes about her.
-
Mackenzie is mad about a video of her with the bug.
-
Mackenzie gives some really mean advice at Miss Know-it-all. She also finds a letter from Brandon to Nikki (on Nikki's locker) and makes sure that Nikki doesn't get the letter.
-
Mackenzie places the letter back on Nikki's locker, so Nikki goes to the place where Brandon said that they shall meet, but he doesn't show up...
-
Mackenzie is going to transfer to another school, but when she goes back to her old school for her last day there, she loses her diary...
-
Nikki finds her diary back!
-
Chloë, one of Nikki's best friends, suddenly stops talking to Nikki and her other Best friend, Zoey...
-
Nikki and Zoey find out why Chloë didn't speak. She got braces and told it to Nikki through Miss Know-it-all, but Mackenzie had written a really mean letter back. Unfortunately, Chloë thought that Nikki had written it.
-
Nikki and her friends are deleting the letters that Mackenzie had written and write some new letters at Miss Know-it-all. They also find out that Mackenzie had braces when she was young, and Nikki and Brandon become friends again.
