In the not too distant future, technology has developed to the point where a person can be placed in a Sleep State, which is a cross between suspended animation and a drug induced coma. Theoretically, a person can be put to sleep for any length of time and age only a couple of days for each year that they are asleep.
At about the same time that the longest sleep trial to date is being completed, it is discovered that there is a very unusual comet approaching Earth and almost everyone will be killed by the powerful radiation that it carries.
Immediately, the government proceeds, to build a sleeper facility large enough to hold as many specially trained men and women as possible.
During the preparations, the government must finish the facility, select the team of sleepers, and at times take drastic steps to maintain secrecy.
A time is pre-set to awaken the sleeper team, but, upon awakening, they learn that things have gone wrong. They now must find ways to carry out their mission in the new and strange world in which they find themselves.