The highly rated and watched U.S. series, The 4400, is making its debut in Canada on Space with a special two-hour pilot on Sept. 22. This five-hour drama series follows 4,400 people who have disappeared from various parts of the world and are suddenly returned to present-day Earth after being missing for an extended period of time. The 4400 tracks their re-entry into the world, the impact it has on them and those they left behind and how the rest of the population react to their assimilation.