Rusty Griswold plans to travel cross-country with his wife and two children in an effort to re-attach their relationship. However, their journey turned into misfortune.
Rusty Griswold berencana melakukan perjalanan lintas negara dengan istri dan dua anaknya dalam upaya untuk merekatkan kembali hubungan mereka. Namun, perjalanan mereka berubah menjadi kemalangan.