Ep 1. Day 5: 7:00 A.M. - 8:00 A.M

Jack Bauer returns for an action-packed fifth season of 24. The show kicks off with an intense start as we catch up with Jack after the traumatizing events of the previous season. Jack is no longer working for the government, as he has become a civilian emergency medical technician and has been trying to distance himself from the violent world he used to inhabit.

However, Jack isn't left alone for very long. He is quickly plunged back into the chaotic world of counter-terrorism when he receives a call from his former boss and mentor, President Palmer. President Palmer is in trouble again, as a group of terrorists has launched an attack on a new Russian president visiting the United States, killing almost everyone in attendance.

The terrorists' next move is to abduct a number of high-profile US citizens, including CTU officer Curtis Manning, and President Palmer's sister, Sandra. Jack teams up with his former CTU colleagues, including Chloe O'Brian and Tony Almeida, to track down the abducted citizens and stop the terrorists before they cause any more damage.

The episode moves at breakneck pace as Jack unites with his allies in a desperate race against time to prevent another catastrophic terrorist attack. We see Jack struggling with his own demons as he copes with the psychological trauma of his past and tries to reconcile his former life with his newfound profession as a medical worker.

Meanwhile, the terrorists' plan becomes clearer. They are intent on creating a large-scale biological attack, with the abducted citizens serving as both hostages and guinea pigs for their deadly experiments.

The tension builds to a nail-biting conclusion as Jack and his team race to track down the terrorists' hidden laboratory and neutralize the bioweapons they've created. The episode ends with a shocking twist that sets the stage for another season full of thrilling twists and turns.

Overall, 24 season 5 episode 1 is a gripping start to another thrilling season of the iconic action series. With visceral action scenes and an engaging plot, fans of the show are sure to be riveted by the latest chapter in Jack Bauer's adventures.