Its brilliant i have both series on dvd if you want me to copy them for you.
Its basically all over the years 4400 ppl were abducted. Then all on the same night they were sent back to the same place at the same time, but none have aged a day and some have been gone 50 years! They dont know where they have been nor are they aware of how long they have been gone. But all have come back with special abilities, its brilliant.