When the love letters Lara Jean wrote for former crushes are mailed out, she must deal with the fallout at home and at school.
Lara Jean lives with her younger sister and father in the house next door to her childhood friend Josh.
Josh looks over at his Lara Jean's house while working on his car or taking out the trash.
Lara Jean goes to high school where during track practice she is mortified when realizes that all of her love letters were somehow mailed out.
Lara Jean third-wheels a date between Margo and Josh.
The family says goodbye to Margo as she heads off to college.
Lara Jean runs to the cafe to escape Peter but he tracks her down there to confront her about the letter.
Lara Jean and Peter attend their first party together as a 'couple' which upsets Gen.