The fourth season of "Prison Break" premiered in the United States, unraveling many of the mysteries left over from the previous season. However, many fans of American TV dramas felt that the resolution of the suspense was too hasty. How did the female lead, Sarah, come back to life? Why did the male lead, Michael, remove his tattoo? Which main character from the previous season will die? These were the questions left at the end of the third season of "Prison Break," which had kept the fans guessing for nine months. But the answers revealed in the fourth season left some fans unsatisfied. Michael's charming and once mission-critical tattoo was simply erased to help him conceal his identity. The American media had reported earlier that it took four hours each time to paint on the tattoo, so the lead actor, Miller, requested the scriptwriters to "find a reason" to get rid of the tattoo. But this method currently used seemed a bit hasty. Another plot twist that fans found unreasonable was Sarah's inexplicable resurrection.