The 10-year-old Moli is the son of the owner of an herbal tea vendor at the night market, but he likes the competitor’s bubble tea and becomes a good friend with Peanut, the daughter of the Bubble tea's owner. Moli believes in the existence of aliens and discovered that the alien spy Ke-Ke wants to snatch the bubble tea as an energy source for his home planet. He must team up with his best friend Peanut and other fantastic species who live in the night market to save the earth from the aliens' invasion because adults do not believe him. But Ke-Ke doesn't know that bubble tea need to mix with herbal tea to be an energy source. Will he finally find it out eventually?