The Bear family-Papa Jeff, Ma Rhonda, and cubs Chris and Amber-live a happy life by the sea. Their peaceful routine is shattered when Chris discovers an old bottle containing a treasure map with the clue: "Follow the seagulls to the hidden treasure!"
What starts as a family adventure quickly expands as cousins Joey and Joshua, Grandma and Grandpa Bear, and Aunt Sissy and Uncle Karl all join the quest. Following the seagulls, their journey takes them from the sandy beach up a steep, rocky mountain and through a whispering forest.
They eventually reach a beautiful cove where the map reveals a new clue: the treasure is on a distant island with a lighthouse. Undeterred, the family team up to build a raft named the "Bear Explorer Adventure Raft" (B.E.A.R.). As they set sail across the water, they encounter a pod of friendly dolphins, only to be met by a giant, shadowy, seaweed-covered shape emerging directly in their path. The adventure continues!