Complex sentence: After he attempts suicide to make sure he doesn't start the smallpox epidemic all over again, Mitty is kidnapped by terrorists who want the precious scabs to infect the U.S. He then fakes the symptoms of smallpox to bring the terrorists to his room to trap them.
Split into simpler sentences: After he attempts suicide to make sure he doesn't start the smallpox epidemic all over again, Mitty is kidnapped by terrorists who want the precious scabs to infect the United States. He fakes the symptoms of smallpox to bring the terrorists to his room to trap them.