Molly and Tooey design the treehouse of their dreams, complete with a windmill and elevator, but their plans may have to change when Tooey's indoor cat Mouse gets loose!/Tooey's puppy, Khi, is cute, but doesn't like following directions. If Tooey wants Khi to become a great lead sled dog, he'll need patience and lots of help from Molly and Suki.