The Good Lord Bird (2020)

John and Onion continue their fundraising mission, this time heading to Canada on foot. After seeing true freedom for the first time and frustrated with Brown's increasingly irrational behavior, Onion demands freedom from Brown's army. But, when the legendary Harriet Tubman endorses Brown in a room full of new recruits, Onion realizes that he may be more invested in the cause and the "old man" than he thought.