What happened on the May 2nd episode (Entitled"The Brig") of Lost?

I want in full detail what happened. I don't care about spoilers, I want to know what happened in full, especially about the new girl on the island, the one who fell out of the helicopter. What really happened on Oceanic Flight 815?I WOULD LIKE A FULL EXPLANATION!

Ok, I'll try. She was hired my desmond's ex to serch for him. They didn't know that the island was even there, and by the time she saw land, the helicopter was already going down. Apparentley, she took off from a boat 80 miles from the island. She said the the whole plane was found in the water shortly after the crash, and al the bodies were stil on board, but that's all the info we were given on that.

one thing that bugs me is how can you jump from a helicopter?? wouldn't your chute get caught in the propeller thing??...

Naomi (girl who fell out of the helicopter) gave some information to Sayid, who was grilling her about how she came to be on the island. Naomi told Sayid and desmond that she was hired by Desmond's ex girlfriend to find him. She said that it was her mission to find Desmond. She also showed them a walkie talkie device and told them that a ship/boat is waiting for her not too far from the island. This raised the hopes of the islanders that they will be rescued if they can communicate via the walky talky. Locke came back to the beach and told Sawyer that he had kidnapped Ben and that he wanted to kill him. Locke took Sawyer into the jungle to show him where he had Ben stashed. Once they reached the abandoned ship Locke pushed Sawyer into a room and locked him in. When Sawyer saw a man with a bag over his head, he took off the bag and realized it wasn't Ben. It turns out that it was Locke's father. Locke was ordered to kill his father (to achieve closure) by Ben and told that he could not join"the others"until he had his father's dead body with him. Sawyer balks at Locke's order to kill his father until Sawyer discovers that Locke's father is the conman who slept with his mother and stole his familys'money, thus leading his father to commit a murder-suicide. This is the man that Sawyer has been wanting to kill his whole life. When Locke's father baits Sawyer, Sawyer ends up strangling him to death. When Sawyer asks Locke why he did this, Locke explains to him that he couldn't kill his father. Sawyer heads back to the beach and become sick over what he did. Locke heads back to join the others where he will presumably pretend that he killed his father. The beach dwellers did not want to tell Jack the information about Naomi because they no longer trust him. When Kate goes to tell Jack the news, Jack insists that Juliet hears the news as well. It becomes clear that Jack and Juliet are hiding a secret, one that Juliet wants to tell Kate. Jack says no, not yet and Kate gives him a look of betrayal. It is clear that Jack has changed and cannot be trusted.