What is the plot of Artemis Fowl and the Artic Incident?

There is a lot going on in this book -- lots of plot
twists and turns, but here is the basic story.

Artemis
Senior has been kidnapped and Artemis Jr wants to get him back.  The LEP needs Artemis's
help so that they can break a smuggling ring run by the goblins.  Artemis offers to help
in return for the LEP's help in getting his father
back.

While Artemis, Butler, Holly and Julius Root are
trying to get Artemis Sr. Briar Cudgeon (with help from Opal Koboi) takes over LEP
headquarters, locks Foaly in his Operations Booth, and makes it look as if Foaly is
leading a revolt against the LEP.

In order to end that,
Artemis and the rest go to Los Angeles and capture Mulch Diggums.  They get him to
tunnel into Koboi's lab and return control of all of LEP's weapons to
LEP.

Once they have done that, they go back and complete
the rescue of Artemis Senior.