Moko is an explorer. As he travels the world continent by continent, he makes many friends and discovers many natural phenomena which sometimes delight him, and other times scare him. Each animated episode recounts an adventure and takes an "original story" approach to explaining these natural phenomena. In this episode, dawn is breaking in the village, Moko and Mei-Lei are sound asleep. The earth begins to rumble, and an earthquake suddenly wakes them. Mei-Lei is so afraid she is shaking and Moko asks her to sing. As she sings, the ground slowly stops shaking. Moko and Mei-Lei head back to the village thinking that the ground must sleep so soundly that every so often it is woken up by the song of people wandering along its back.