Ava and her cat

When the apocalypse arrives, all animals mutate into giants. Ava’s orange tabby is just neutered before it grows ten‑feet tall. It easily subdues a ferocious giant dog and vows to protect Ava, yet swears vengeance on the vet who neutered him. Terrified, Ava clings to its fur — she herself signed the neutering consent form, and her previous tearful act of grief was all fake.