The films follow groups of characters facing dangerous and bizarre situations involving zombies and monsters. 1. The first film is set at a university where a mad professor unleashes a zombie outbreak, prompting the government to send a medical research team to handle the situation. 2. The second film focuses on a group of young people at a rave who fight off zombies and other monsters. 3. The third film details a group of astronauts encountering a dangerous life form on a space station. Each film explores the characters' struggles for survival in these perilous scenarios. Let me know if there are any further adjustments you need or additional information I can provide!