Grumbly Bear wants to know what is beyond his home in the Rocky Mountains. He packs berries and salmon snacks and heads out on an adventure! Trying to be brave, Grumbly watches his beloved mountains fade away as he travels a bumpy road in the back of a truck. Grumbly comes upon a fishing boat and takes his adventure to the water. Grumbly falls asleep on the rocking boat and wakes in the middle of the Great Water! Find out where his adventure takes him next, the friends who help him along the way, and where he finds...home.