Forced out of the forest that had been their home for generations, the four warrior Clans are about to settle into their new homes around the lake. Some cats see their new beginning as a chance for the Clans to live together in peace and friendship, but WindClan's deputy Mudclaw believes the other Clans cannot be trusted. And as he prepares to take the ailing Tallstar's place as leader, he is determined to do whatever it takes to secure the future of his Clan--no matter the cost.