As they play with toys in the playroom, the Prince accidentally breaks his robot's legs. Whisked away to a fantasy world, the Princess and Bona, now as doctors, perform surgery on the toy robot. They ask the Prince for spare parts, but his antics only cause further damage, breaking the robot in two! What to do? In a bold move, the Princess uses a ribbon from her favorite doll to bandage and mend her brother's robot, turning the operation into a success. The delighted Prince rejoins his sister for more playful adventures with their toys.