Right from the opening scene, The Descent is one of the most exhilarating episodes in Alias history. There are so many twists and two massive shocks which nobody would have guessed.
The Descent begins with APO discovering Sophia's true identity: Elena Derevko. APO desperately search for Elena and follow her trail to a follower of Rambaldi who has turned up dead and eventually a raid on her Prague headquarters.
Where to begin? This episode has so many amazing moments. The Indiana Jones-style hunt for the Sphere of Life seen in flashback featuring Sloane and Nadia is extremely fun and the cracking glass which Nadia has to walk across to get to the Sphere is incredibly nerve-wracking. The only annoyance is that everything seems too easy during these scenes. The caves haven't been stepped in to for thousands of years and everything's so easy to get into. It would have been better if we saw some trials to get to the Sphere, like the quest to find the Holy Grail in the final Indiana Jones movie.
It's always good to see Bad-Sloane back and he again returns in this episode. Like in the past, you question his motives and he's so enigmatic that you have no idea if what he is doing is really some highly thought-up plan to take down Elena. Who knows?
Elena shooting Dixon is a massive shock but (I know I'm being morbid) it's a shame that Dixon didn't actually get killed off. He's the shows most underused character (well, except for Weiss, who may as well be invisible) and it would have been even more of a shocker to see the writers were confident enough to murder a character who has been there right from the beginning. But, his shooting does lead to the best Alias cliffhanger since Francie was murdered, that he saw Irina being taken away by Elena's men in Prague! It's a big shock that she's alive and I hope that her apparent "murder" at Jack's hands won't be resolved in a cop-out manner.
After so many stinkers this season, it's nice to finally get an episode of Alias which is extremely tense and extremely exciting.





