School Daze (1994)

Franklin, the wise owl, has gathered the Chucklewood gang to his classroom for their annual training sessions and Freddie, the feisty raccoon, convinces Buttons and Rusty to explore the lower tunnels that are under the caves. Their adventure leads the cubs to being captured by some wild creatures underground. The cubs are able to befriend a couple of the creatures and in the end learn some valuable lessons.

Unfortunately the movie School Daze is not yet available on HBO Max.