Jellystone Park is experiencing declining visitor numbers, putting it at risk of being shut down and sold by the corrupt Mayor Brown. Yogi Bear, along with his loyal sidekick Boo Boo, spends his days outsmarting tourists to steal their picnic baskets, much to the frustration of Ranger Smith, who is trying to maintain order in the park. When Rachel, a nature documentary filmmaker, arrives to create a project about Yogi and his antics, she inadvertently becomes involved in the struggle to save Jellystone. The park, normally a haven of natural beauty and wildlife, becomes the focus of a desperate attempt to prevent its sale and redevelopment.

Ranger Smith teams up with Rachel to organize a festival to attract visitors and raise funds needed to keep Jellystone open. Meanwhile, Yogi and Boo Boo hatch their own plans to help save their home, using their unique brand of mischief and clever schemes. As they navigate a series of challenges and misadventures, the sense of impending loss brings the characters together, highlighting themes of friendship and community. With time running out, it becomes a race against the clock to see if Jellystone can be saved from the clutches of those who would destroy it for profit.