To All The Boys: Always and Forever berkisah tentang Lara Jean (Lana Condor) yang berlibur ke Korea bersama keluarganya. Ia harus berpisah sementara dengan sang kekasih, Peter Kavinsky (Noah Centineo)….

Lara Jean and Peter have just taken their romance from pretend to officially real when another recipient of one of her love letters enters the picture.