Need short summary of Pirates of the Caribbean Dead Man's Chest, PLEASE HELP!!!

[maslex]

For those of you who have seen the movie or read the book, could someone give me a quick run down of the movie.

Cpt Jack Sparrow wants the key to the chest to unlock the treasure but it is hidden in the tentacle beard of Davy Jones. Captain Jack then......

I basically need to know a few things he went through to get the key and what happens when he opens the chest. And what he does with the treasure (which I believe was Davy Jones' heart right?)

Basically I need to know the problem of the story (which is Jack wanting the key but it's on Davy Jones) and what the solution to the problem was.
Can anyone help me? Doesn't have to be long. Maybe a few sentences. Thanks so much.

 

[Weluvdisny]

Picking up where the first movie left off, Will Turner and Elizabeth Swan are to be married. However this is interrupted when both are arrested for aiding in the notorious Captain Jack Sparrow's escape. The new captain, Beckett, will lift all charges, if Will can hunt down Jack and bring him back to Beckett, along with his magic compass. However, Jack has other problems. Years ago, he made a deal with Davy Jones to raise the Black Pearl. Time is up. His part of the deal was to give Davy Jones his soul. Once Will finds Jack, unaware of the current situation, Jack coaxes Will into boarding Davy Jones's ship, the Flying Dutchman, and retrieve a mysterious key. This key opens the chest that contains Davy Jones's secret. With it, you can control Davy Jones and his fearsome beast, The Kraken. Once Will retrieves said key, Davy Jones is hot on his trail, now hunting down both Jack and Will. It is now, only a matter of time, before something happens.

Jack gets the heart from the chest but it is stolen from him by Captain Bellamy. In the end, Jack is swallowed by The Kraken and Will and Elizabeth turn to the voodoo woman for comfort,and she reveals to them that Captain Barbosa is alive and willing to aid in the rescue of Captain Jack Sparrow.