Spoiler alert. Lesson: everyday is a gift, don't waste it. Also a lesson, writer and director hate Trump. Don't tie art to political opinion. The reason the teens explode is never given: it's just something with that school or senior class. At the end Mara said Trump would hate a woman president from his gold plated coffin. Trump did more for women than the current ood regime who covered women's abuse issues up for decades, ie. Weinstein and Epstein. I should have turned the movie off when it said at least exploding isn't as bad as being a Republican. Guess I'm a maschoist. Don't be like me. Just don't waste your time watching this mess.