Fox has debuted a new promo for 24: Live Another Day.

The 60-second clip sees a fugitive Jack Bauer (Kiefer Sutherland) being tracked by the CIA as he arrives in London.

Jack is suspected to be plotting to assassinate the US President (William Devane), but the ex-CTU agent may in fact be trying to protect him against a terrorist plot.

The clip also features 24 veteran Mary Lynn Rajskub as Chloe O'Brian, Jack's one remaining ally.

24: Live Another Day will launch on Fox in the US with a double-bill on Monday, May 5 and will debut on Sky1 later that month.