An elderly married couple find that as their physical and mental health deteriorates, they find themselves dependent more and more upon their grown children.

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.