Wells and Amy go back three days to try to change history, but he is arrested on suspicion of murder because he knew so much about the serial killings, and Amy is left unprotected.
Wells and Amy go back three days to try to change history, but Stevenson learns that Amy knows both Wells and who he (Stevenson) really is. Wells is arrested on suspicion of murder because he knew so much about the serial killings, and Amy is left unprotected.