The future looks bleak for today’s youth – seemingly-endless austerity, astronomical house prices, insurmountable student debt, a political system which appears intent on destroying itself… And to add insult to injury, their hard-earned taxes are being eaten up by the old – smug, self-satisfied, small-minded, “Little Englander” pensioners whose remaining sole purpose in life is to make it a misery for everyone else. In a small British town, tensions come to a head when a mysterious military convoy crashes outside the Sunnywise Retirement Home. The vehicles were carrying a toxic substance, which, as a result of the crash, leaks into the local environment and infects the residents of the retirement community. The symptoms of this infection quickly manifest – an overwhelming appetite for raw flesh. They’re old, they’re angry and they’re on the rampage. As the military scrambles to control the outbreak and keep everything out of the media spotlight, a group of regular teenagers find themselves in the thick of the battle against these flesh-eating baby boomers..