Some people say that anyone on Earth can be connected to any other person (including Kevin Bacon) through a chain of six people, a concept known as six degrees of separation. Is the world really that small? And can we impact the life of someone halfway across the world? Six very different strangers in New York City go about their daily lives without realizing the impact they're actually having on one another – that is, until a mysterious set of coincidences draws them together, changing the course of their lives forever.