Thomas Anderson is the main character and narrator of the movie. He is an hacker in the disguise of a software programmer, and he is contacted by Morpheus and Trinity. Morpheus is famous and Thomas knows he has to find Morpheus as quickly as possible, though he is slowed by some people that come across him, also looking for Morpheus. They torture Thomas before he manages to get free and in conversation with Morpheus.
Thomas is given news he had no way of preparing for: his life and the world he is living in is not real. He is living in the Matrix. Thomas is offered two pills, one that will show him reality and another that will let him continue living peacefully in the Matrix. Thomas chooses the pill that leads him to wake up in a box, beside a lot of other sleeping people.
Thomas doesn't understand what is happening to him, but is met with Morpheus and his team. They explain that robots have taken over the world and that they are breeding humans in order to gain energy. Thomas, as is explained, is supposed to save the world.
When Thomas starts training, an oracle predicts that he isn't the one that is supposed to save everyone, and Morpheus is captured by a betrayer. Thomas manages to save Morpheus, which means that he is the one after all, and he kisses Trinity in the ending scene.