Fire alone can save our Clan... For generations, four Clans of wild cats have shared the forest according to the laws laid down by the powerful ancestors. But the warrior code is threatened, and the ThunderClan cats are in grave danger. The sinister ShadowClan grows stronger every day. Noble warriors are dying - and some deaths are more mysterious than others. In the midst of this turmoil appears an ordinary housecat named Rusty... Who may yet turn out to be the bravest warrior of them all

Deep in the heart of the forest, four clans of warrior cats coexist in uneasy harmony -- but uncertain times are upon them, and dangers threaten the precarious balance of the forest. Fireheart is a ThunderClan warrior cat now, but his troubles are far from over. As the chill of winter sets in, the cats of rival RiverClan grow restless, while WindClan is weak and facing threats from all sides. As tensions build to an explosive climax, Fireheart faces not only imminent battle, but betrayal from within his own Clan

Fireheart's traitorous enemy Tigerclaw has been vanquished and exiled from Thunder Clan -- but Fireheart can't shake the feeling that he's lurking in the forest, waiting for his chance to strike. That's not the only problem facing the young warrior in these blazing summer months, as he struggles to handle sinister omens, an apprentice with a shocking secret, and a devastated Clan leader who is a shell of her former self. Meanwhile the forest gets hotter and hotter ... and everyone braces for the coming storm