Dog Jack (2010) on Netflix

Plot summary

In this fact-based film which is still considered fictional in the closing credits, Jed is a young slave at the beginning of the Civil War. Louis Gossett narrates the story from the point of view of Jed as an adult. Jed's best friend is his dog Jack.

Jed is owned by General Cooper but actually works for the general's son Kyle, who has taught him to fight hoping that they will be able to serve together in the war. Jed's knowledge proves valuable later.

Several slaves run away but are found and punished. While training in the woods, Jed and Kyle find a wounded Yankee soldier Nathaniel and bring him back to the general's place so Jed's father can take care of him. For this Jed's father is severely punished, and Jed runs away. Nathaniel has given him a letter to give to his father Rev. Stewart in Pittsburgh. The pastor hasn't spoken to his son in years and strongly opposes the war, though he will help slaves. Given directions on how to get to Pittsburgh, Jed makes the trip with the dog but is pursued by men who want the money they will get for returning Jed; it is federal law that runaway slaves be returned, even in areas without slavery. When Jed goes inside Rev. Stewart's church, the pastor refuses to let the men have Jed, and he provides the young man shelter. Jed does not give the pastor the letter, because the pastor indicates he has no desire to reconcile with his son.

Jed and Rev. Stewart both sign up for service in the Union Army.