Long ago, the cats of SkyClan were lost to the warrior code - until Firestar, leader of ThunderClan, helped them rediscover the ways of their ancestors. Since then, SkyClan has enjoyed moons of peace and near-prosperity.

Hawkpaw dreams of the day when he will receive his warrior name and be called on to protect his Clanmates. Then Echosong, their medicine cat, has an alarming vision, and suddenly Hawkpaw is thrust onto a path he never could have imagined.

SkyClan's era of peace is at an end. Now they must fight for their very survival.