Trini's excited to enter her giant cabbage into the Alaska State Fair, but a moose keeps nibbling at its leaves; Molly has to impress Aunt Merna if she wants to get her native name.

Molly, Grandpa, Dad and Tooey go on a snowmobile adventure to search for hot springs in the backwoods; Tooey's hero, dog musher Eugene Pike, re-creates a historic mail run across interior Alaska.

Molly, Tooey and Trini go to the library to research giant ice worms, which they think are responsible for a power outage at the Trading Post; Molly and Tooey lure back Tooey's dog, Anka, after he wanders off into the woods.