Lisa buys a vintage fedora online and everyone admires how cool it makes her look. But when a series of unfortunate events happen to her, she thinks the hat is cursed. Zack thinks it's silly so he takes it from her and his date stands him up. Convinced that it really is bad luck, he gives it to Slater, who loses a big wrestling match. Kelly thinks it's a coincidence and borrows it, resulting in more bad luck. The foul fedora must be destroyed, before its mayhem spreads!