SPOILERS AHEAD!
As the second season of "Lost" comes to a close, extraordinary events take place that will change the picture for the third season, much like the hatch's contents did for the second. It is hard to tell what it will be like, but one thing is sure : it will be violent.This episode was a wealth of information and shockers. Michael returns and he claims the Others are miserable, poorly armed and waiting to be owned by the fully equipped survivors. Kate should open her damned mouth about the disguises she has discovered at this point, but the hope for revenge is clouding everyone's thoughts. Ana Lucia tries to resolve her guilt over the murder(s) that made her a failure as a cop and a daughter. In the process, she assists Christian Sheppard (Jack's father) locate his daughter in Sydney. I'm sure Jack would like to know this, but by the episode's end it's clear it won't happen. Ana Lucia figures out that killing Henry will make her demons go away. Getting a gun from Sawyer to accomplish this is no small task, but Ana Lucia's resolve is strong. She seduces him and gets to steal the gun after sex. It's a big clue to how psychologically messed up she is. In the end though, she finds herself unable to do it. Still, she doesn't think much when Michael asks for the gun to do it himself. I believe his speech about the Others being animals and killers is genuine, and Ana Lucia is convinced. This is when things get wild : Michael says "I'm sorry", shoots Ana Lucia who dies with a depressing expression of surprise, and an unlucky Libby who walks in the scene while picking stuff for a picnic with Hurley. The episode ends with Michael opening the door to Henry's prison and shooting his own arm.
It's obvious at this point that the Others have blackmailed Michael to help them free Henry and possibly be a mole at the survivors' camp in exchange for his son. Despite the fact that a father will do anything for his son, Michael's actions are terrible and his deception will not last long. I doubt his character will continue much into the third season. Libby's death is the most frustrating event of the season. She is the only character we have had no flashback from, and the teaser from Hurley's episode was a promise for interesting plots that are now hanging in the air. I hope these issues will be resolved in some flashback before the season ends. Three more episodes to go, and the writers promise a finale that will top the one of first season. It seems "Lost" will keep people at the edge of their seats for quite some time.