Liu Yaodong, the head of Dongyao Group, is said by the outside world to have gone crazy for investing in a poor mountain ditch. But no one knows that twenty years ago, right here, the villagers all chipped in fifty cents or a yuan for tuition, and saved up a full seventy-six boiled eggs to send him, a poor boy named Liu Mancang, onto the slow green-skin train heading to college. He changed his name and started from scratch, simply wanting to bring all the villagers out of the mountain to enjoy happiness. But reality dealt him a heavy blow: his most trusted vice president faked engineering data. To uncover the truth, Liu Yaodong decides to enter the village undercover in the capacity of a headquarters investigator. How will he repay the kindness of these seventy-six eggs?