The Ultimatum (simplified Chinese: 双子星) is a Singaporean Chinese drama which was telecasted on Singapore's free-to-air channel, MediaCorp Channel 8. It made its debut on 27 May 2009 and ended on the date 7 July 2009. This drama serial consists of 30 episodes, and was screened on every weekday night at 9:00 pm.Being the mid-year Channel 8 blockbuster of 2009, it was the first Channel 8 drama to be fully filmed in HD.