Details on the next Terminator trilogy have been few and far between, but now the plot of the film has been revealed.

The trilogy will be set after Judgment Day in the year 2018 and Christian Bale (who has signed for all three movies) will take on the role of John Connor and will lead the human race to salvation. However, the future isn?t quite the one his mother trained him to save.

According to a Warner Bros. press release, the future is altered somewhat by the appearance of Marcus Wright (Sam Worthington), a stranger whose final memory is of being on death row. Connor must keep an eye on the newcomer to establish if he has been sent from the future of the past.

At the same time, SkyNet prepares for a final assault that will end the war which forces Connor and Marcus to set off on a mission into the very heart of Skynet ? and while there they will learn the terrible truth of SkyNet's plan.

?Terminator Salvation: The Future Begins? is scheduled for release May 22, 2009.