But then, disaster strikes! It transpires that when encoded into quaternary, and thence to base pairs, the joke "What lies at the bottom of the sea, shivering?

But then, disaster strikes! It transpires that when encoded into quaternary, and thence to base pairs, the joke "What lies at the bottom of the sea, shivering? A nervous wreck!" encodes a viral sequence for a novel but entirely deadly pneumatic disease. When one of the rockets misfires and detonates in a Bernard Matthews turkey farm, all human life on this planet is quickly extinguished. 100 million years later, a crashed alien spacecraft is discovered by the inhabitants of Gliese 15s, triggering a cultural revolution involving terrible puns and mildly amusing logical inconsistencies.