Freddie and Stumper are happy to be back together. Stumper lies in the sun at his fountain in the backyard. He eats all day long ... all the bugs he wants. But he's lonely. Freddie's not always around to play. He has a new school and new friends. Stumper had made a friend down in the sewer! He wondered what had happened to Big Bertha after he was swept down the drain by the water. Could he find her again? Could he help her find her family? To do that he will have to go back into the sewer. And that's a scary place!