On its own without the reference to the train to Busan this film was a derailment. Hitching its caboose to the Train to Busan , made it even worse. if you are expecting the same ride, you will be extremely disappointed. Far too many attempts to make you sad for the characters - really felt contrived, just cheesy. The Protagonist's brother-in-law was annoying; I was rooting for the zombies to kill that clown. in short this film was a train wreck.