Ep 20. Countdown

Sydney Bristow is a CIA agent who works undercover for SD-6, a black ops division of the agency that she believes is part of the US government. However, she soon discovers that SD-6 is actually a criminal organization and decides to bring it down from the inside. In season 2 of Alias, Sydney is struggling to balance her double life as a CIA agent and a member of SD-6, which is becoming increasingly dangerous as she gets closer to uncovering the truth.

In episode 20, named "Countdown," Sydney and her team are tasked with preventing a nuclear weapon from being detonated in Los Angeles. The team discovers that a group of terrorists has stolen the weapon from a Russian military base and is planning to set it off in downtown LA. Sydney and her team are given only 17 hours to stop the terrorists before the bomb goes off.

To find the terrorists, Sydney and her team have to track down a man named Rambaldi, who they believe has information on the location of the bomb. Rambaldi is a brilliant scientist who was working on a secret project for the Russian military. The project was abandoned, but Rambaldi continued to work on it in secret. He has gone into hiding, but Sydney and her team manage to track him down in Rome.

When they arrive in Rome, Sydney and her team find that Rambaldi has been kidnapped by the same terrorists who have the bomb. The team manages to rescue Rambaldi and obtain the information they need to find the bomb. They discover that the terrorists are planning to detonate the bomb in Griffith Park, a popular tourist spot in LA.

Sydney and her team race against the clock to find the bomb before it goes off. They are joined by a team from the NSA, who are also trying to stop the terrorists. Sydney and her team manage to track down the bomb and disarm it just in time, saving millions of lives.

However, the team soon realizes that the bomb was only a distraction. While they were focused on the bomb, the terrorists were able to steal a highly classified computer from a nearby military base. The computer contains sensitive information on US military operations around the world. Sydney and her team are tasked with finding the computer and preventing the terrorists from using the information to launch further attacks.

In the end, Sydney and her team are able to track down the computer and prevent the terrorists from using it to launch another attack. However, they realize that there are still many more threats out there, and they must continue to work tirelessly to keep America safe. The episode ends with Sydney and her team reflecting on their experience and reminding themselves of the importance of their work.

Overall, Alias season 2 episode 20 is a high-stakes, action-packed thriller that will keep viewers on the edge of their seats. With a compelling story, strong characters, and plenty of twists and turns, it is a must-watch episode for fans of the series.