"When Clara and Clem build a robot out of blocks, they have no idea where the robot (and their imagination) will take them. But soon enough, they are in outer space"--
"When Clara and Clem build a car out of blocks, they have no idea where it will take them. But with a little imagination, the two take the trip of a lifetime down winding roads, up tall mountains, and across the sky"--
A boy and a girl are frightened when a big spaceship lands in their back yard and the little blue-skinned boy who emerges tells them to come close, but it soon becomes clear that he is just looking for friends on Earth.