Billy Dickens discovers that his mysterious father lives in Montana, so this summer Billy will fly across the country, hike a mountain, float a river, dodge a grizzly bear, shoot down a spy drone, and save his own father.

When Grizzly Bear shows up at his campfire unexpectedly, Roscoe the raccoon graciously offers him a s'more, and when additional hungry guests arrive, he happily makes s'more after s'more.

Continues the journey of a black bear, a polar bear, and a grizzly cub in their search to find the Last Great Wilderness.

"Sam Wu is NOT afraid of the dark. But it's hard to prove you're brave when you're about to face your greatest challenge: camping. That means confronting terrifying things like grizzly bears, vampire bats, aliens, and the worst person in the WHOLE UNIVERSE--Ralph ZInkerman! When something starts haunting the woods, can Sam and his crew band together to become Masters of the Dark? And could they even have...FUN?"--