Jack Earns His Wings
How do birds fly? When a magpie steals a piece of alien technology, Jack has to learn how to fly like a bird in order to get it back.
Which creatures jump the highest? When Sam accidentally gets fleas from Rocket, Jack must shrink down and find it somewhere on her head before squeamish Sam loses her mind.
To the Moon!
Can anything live on the moon? Thinking the moon is made of cheese, Rocket runs away to the moon where he gets lost. Jack has to find him before the little dog's oxygen supply runs out.
Why do beavers build dams? Jack’s attempt to slow a dangerous river with beaver dams causes a major flood that threatens Nico and Sam’s house.