The Fearless Four

Buster the bloodhound loves singing and dancing more than hunting foxes. His owners notice this odd hobby and strike a deal with a Mix Max worker to kill and stuff him. Buster starts to worry about his fate and tries to escape from the operation. The worker chases him, pulling his tail, provoking Buster to lash out and break free.

Fred the elderly donkey is held captive by his newly replaced owner. A female bee helps Fred escape by swarming the driver in a truck. They discover road signs have been swapped between Bremen and Paris, which confuses their direction. They decide to chase fame as singing animals and spin a bone to choose Paris or Bremen, which ends up pointing to Paris (but it's Bremen), so they head off toward their destination.

Gwendolyn is sad after Aunt Wanda's death; the inheritors care only about finding two gems and neglect her. They suspect she knows the gems' location and attempt to kill her with poisoned milk; their plan fails. They hire a Mix Max worker to finish her off, and a kid connected to the heirs also tries to kill her, but she outsmarts them by trapping them in the basement. After escaping, she hears Buster and Fred singing and agrees to join their journey.

Tortellini the rooster is kicked out after his mate's anger over an affair. He is captured by a Mix Max worker but is freed when a tree branch breaks his cage. Fred kicks the cage to release him, and Tortellini boasts about his singing before they leave him for now. He eventually joins the trio on the road.

They meet an owl who warns them they're heading toward Bremen instead of Paris and that Bremen is dangerous. The warning lands as a caution, but the animals decide to press on toward Bremen anyway.

They reach Bremen, a town controlled by the evil Dr. Greed, the Mix Max manager. He wants to use the animals' talent to improve the factory's image by singing a sausage commercial jingle. Soon they become famous but grow bored of performing the same song, and they realize the company owns their voices and freedom.

They attempt to fight back and are imprisoned; Fred is tickle-tortured until he passes out. Mozart the mouse tries to help but fails due to his small size. Tortellini's tail-pull moment triggers Buster's rage, breaking the bars and freeing them.

They escape the prison and uncover Mix Max's broader scheme of caging animals to transport them to slaughter for sausages. The four animals vow to save their fellow captives and others who might suffer. They resolve to expose the company's plans and end the cruel practice.

During a local election, the animals stage a protest with a song, catching the crowd's attention. The demonstration escalates into a tomato riot that disrupts the campaign and puts pressure on the factory owners. The town square becomes a focal point of resistance against the cruelty of Mix Max.

The animals stage a final ambush, appearing as an eight-eyed monster the owl warned about. In the ensuing clash, they trap Dr. Greed, Platini, Ackerman, and the Mix Max manager under a movable tiled floor and seize a remote to free the caged animals.

Tortellini accidentally destroys the Mix Max factory with the remote, ending the factory's operation. The animals celebrate their freedom and begin a new life together. The community of animals starts rebuilding a home where they can live without fear.

Buster and Gwendolyn confess their feelings for each other and sing together, while Tortellini and Fred accompany them. The four animals, along with their companions, establish a life together in a house with other animals. They reflect on their journey and savor their newfound freedom and family.