As enemy warplanes and ships surround an island in a military blockade, chaos ensues on city streets: Convenience stores are looted, the internet is knocked out and panicked

A TV show centring around a Chinese invasion is hitting a little too close to home in Taiwan. On the surface, ‘Zero Day Attack’ could be just another Hollywood thriller – air-raid sirens blasting, explosions ripping through buildings and swarms of military jets deployed – but this is a scenario people are actually preparing for.