Stream Huckleberry Finn Online Free – Watch Full Movie from Home at 123Movies. . Huckleberry Finn is a 15-year-old boy who has had a difficult relationship with his often violent father for a long time. When Dad tried to kidnap him, Huck decides to run away from home, and heads out of town on a raft. Huck is soon joined by Jim, a runaway slave who is no more eager to see his master than Huck is to see his father. As the two friends make their way down the Mississippi, they're faced with a variety of challenges and adventures.