Warriors: The New Prophecy is similar to the first game, with a few new features. One new add on is multiple characters. In NP, you can switch between 6 different characters - Brambleclaw, Squirrelpaw, Feathertail, Stormfur, Tawnypelt, and Crowfeather. However, sometime in the game Feathertail dies permantley and you can only switch between 5.
One year after the events of Warriors, the Clans are in peace. Firestar's apprentice, Brambleclaw uncovers a prophecy from the ghost of Bluestar.