A new full trailer for 24: Live Another Day has been released – and it’s full of all the explosions, dramatic countdowns and London landmarks you could wish for.

Four years ago, Jack was a fugitive from justice. Now an exile, he nevertheless is willing to risk his life and freedom to avert yet another global disaster. Tracking Jack are CIA head Steve Harris; CIA agent Kate Morgan, who is both resourceful and ruthless; Jordan Reed, a smart and sophisticated CIA computer tech; and Erik Ritter, a sharp, strong and arrogant field operative.

Calling the shots is James Heller, now President of the United States. Heller is flanked by his Chief of Staff Mark Boudreau, who is married to Heller’s daughter — Jack’s former flame, Audrey. Meanwhile, a hardened Chloe O’Brian, Bauer’s CTU confidante, is now working underground with high-profile hacker Adrian Cros.

The harrowing 12-hour day, which takes place over 12 episodes, will have Jack attempting to thwart “an unthinkable terrorist attack that could change the world forever”.

Business as usual, then.

The show returns to Sky 1 in May – shortly after its broadcast on Fox in the US.

Here’s the trailer:

Non-Sky subscribers will also be able to watch 24: Live Another Day online – legally – through NOW TV. The subscription service costs £4.99 a month for an Entertainment Pass and gives viewers live and on-demand access to all of Sky’s TV channels. (From 16th October 2014, this renews at £6.99 per month.)

You can start warming up now with all seven seasons of 24 available to stream on-demand.

For more information on NOW TV, head this way. To sign up now or see what other shows are available, hit the button below: