In 2014, the International Space Station had to move three times to avoid lethal chunks of space debris and there is an increasing problem of satellites mysteriously breaking down. With first-hand accounts from astronauts and experts, Horizon reveals the scale of the problem of space junk. Our planet is surrounded by hundreds of millions of pieces of junk moving at 17,000 miles...。Tolly14岁时在路边的黑影上见到自己的父亲被四个暴徒活活打死,悲愤的他发誓复仇,他经过百般努力从一个已经进了监狱的凶手口中得知了其余三个人的消息,如今他们已经成为一个城市犯罪集团的重要人物,Tolly开始和警官联手对付他们……。