Now that Nessie and Bigfoot are Best Friends Forever, they play games for hours. But then they realize that their friend The Captain hasn't returned since going for a walk in the woods. Together, they decide to summon the courage to search for the Captain even though they've been hearing a scary sound coming from the other side of the forest. Along the way, they use teamwork and bravery to try and find their friend. And they even make a few new creature friends along the way.