Franklin, a turtle, loses his special blue blanket, and even though he has his father's old yellow blanket, he has trouble sleeping until he finds his blanket again. He decides he likes living in a house where blankets are special to family members.

When his animal friends offer amusing explanations for thunder and lightning, Franklin overcomes his fear of such storms.

Franklin likes to play with his little sister Harriet but sometimes she cries or breaks his toys. Nevertheless, he comes to realize how good it feels to be a big brother.

Even though he is very slow and has many distractions on the way, Franklin the turtle manages to get to Bear's house just in time for a special event.

Franklin tries to come up with a special way to show his mother he loves her on her birthday.