After understanding the danger Samuel would become, he decides to burn the film and return to India, but Samuel finds him and tries to make him speak, finally killing him in his motel room. Hiro fixes Samuel's mistake by saving the film, but also saves Mohinder's life, thus changing the timeline.
After recognizing the threat Samuel posed, he decides to destroy the film and return to India, but Samuel finds him and attempts to force him into speaking, ultimately killing him in his motel room. Hiro intervenes, fixes Samuel's mistake by saving the film, but also saves Mohinder's life, thus altering the timeline.