Ko se po planetu razširi steklina, ki ljudi spremeni v agresivna bitja, se Manel z mačko izolira doma in se zanaša na svojo pamet, da bi preživel; vendar se morata kmalu odpraviti na iskanje hrane po kopnem in morju ter se izogibati številnim nevarnostim.
Small rocks fall from the sky which, when touched, trigger a latent virus that has always existed in humans and begins mutating them into an alien species. Taking advantage of its hive mentality, the aliens are absolutely dedicated to transforming every human on Earth and do so with alarming swiftness. Only a small group of humans remain who have the medical knowledge to devise antibodies to reverse the effects of the virus.
