Mia has an idea for a musical. The best thing is that this idea is to save the Leo Weiß School from the impending closure. But the "potato salad" staging about the past zombie apocalypse causes great confusion.

The outsider Leo becomes the school's new hero as only he can save the students from a mysterious virus that turns them into zombies.

Group of Youtubers enter an abandoned surgery ward for 24-hour challenge, hoping to go viral. They will soon learn that they're not welcome.