After a prison break of STAR terrorists, YuFu and his cyborg agents must infiltrate the refuge where they are heading. The only problem is that it's located on an inhospitable world with no atmosphere and extreme temperatures. YuFu doesn't want to carry out more agency work, but he feels rejected when his daughters don't need him anymore. When the secret service and military require his expertise to lead a group of cyborg agents into an enemy's secret encampment, he agrees to assist. As YuFu and others are launched into space, then transferred to a starship, tragedy deals them a fatal blow. YuFu is traumatized and just wants to go home, but as his comrades uncover more of the plot, they come to understand that the survival of humanity rests in his hands alone. He must embezzle an alien virus intended to wipe out most of humanity in seven worlds. Can YuFu prevent widespread ethnic cleansing when carrying out a mission in such a hostile world? This is the fourth book in YuFu's Space Opera Techno-Thriller series. If you like fast-paced interstellar action, surprising plot twists, terrifying protagonists, and kick-ass cyborg agents, then you'll love this new space adventure. Buy YuFu's Run 4 on Amazon today! Or for free on KU.