Last one there is a rotten egg, or a rotten sperm as the case may be! Millions of gametes set out on this journey, but only one will make it to the mysterious egg. A treasure trove of letters was discovered in a dusty attic in the far reaches of cyberspace, including the deciphered transmissions between their sperm, egg, and brain cells.

Hitch along for the ride as our five lead sperm cells form a rabble of rebels from inside their human host, Euclid Hux. But this time, they are not alone, as they are under the tutelage of a mysterious neuron by the name of Ron Une. Which will be the strongest, fastest, and luckiest of the bunch? There can only be one winner.