Mock and his sister Sweet live beneath the ground until curiosity about all the commotion on the surface finally draws them out of the earth. From then on, they help the needy, the blameless and the courageous wherever they are needed. The pair bring down tyrants, wicked kings and infamous emperors, using clever, comical mole tricks. Their exploits play out against significant moments in history. The result is a lighthearted fantasy adventure in which trickery beats tyranny, running for 49 episodes.