2019年11月，刀锋跑者霍顿（Morgan Paull 饰）在泰瑞尔公司对新员工进行沃伊特-坎普夫测试时，被技师里昂·科瓦尔斯基（Brion James 饰）枪击。警监布莱恩特（M. Emmet Walsh 饰）不得不命老牌刀锋跑者戴克（Harrison Ford 饰）出马，猎杀复制人里昂、罗伊·巴蒂（Rutger Hauer 饰）、佐拉（Joanna Cassidy 饰）、普里斯（Daryl Hannah 饰）。戴克来到泰瑞尔公司调查，在艾登·泰瑞尔博士（Joe Turkel 饰）的请求下，对员工瑞秋（Sean Young 饰）进行了测试。百余问题之后，戴克判断瑞秋为复制人。而瑞秋本人对此真相竟一无所知……In the futuristic year of 2019, Los Angeles has become a dark and depressing metropolis, filled with urban decay. Rick Deckard, an ex-cop, is a "Blade Runner". Blade runners are people assigned to assassinate "replicants". The replicants are androids that look like real human beings. When four replicants commit a bloody mutiny on the Off World colony, Deckard is called out of retirement to track down the androids. As he tracks the replicants, eliminating them one by one, he soon comes across another replicant, Rachel, who evokes human emotion, despite the fact that she's a replicant herself. As Deckard closes in on the leader of the replicant group, his true hatred toward artificial intelligence makes him question his own identity in this future world, including what's human and what's not human.