The first season of Apple TV+'s eerie sci-fi series Severance seems like it happened a lifetime ago since fans witnessed that mind-boggling cliffhanger at the end of season one. Now, after three painstaking years later, its return has been one of the most highly anticipated shows in quite a long time. To promote Severance season two's comeback, its cast has taken their "innie" Lumon Industries selves into the real world in a genius pop-up marketing ploy that surprised many onlookers.