A followup to Train to Busan, set four years later in a post-apocalyptic South Korea (no, not the present-day one). It's like its predecessor without the good bits, larded with laugh-out-loud cliches and incoherencies. Just as well the shot-in-leg Sarah Connor tiger mother shuffles differently to the average zombie, and that heavy-lift helicopter is quieter than a car horn. There is no Mad Max. It is entirely beyond salvation.
Manohla Dargis makes bank by talking about anything except this movie.