Stream The Adventures of Huck Finn Online Free – Watch Full Movie from Home at 123Movies. . Huckleberry Finn, a rambunctious boy adventurer chafing under the bonds of civilization, escapes his humdrum world and his selfish, plotting father by sailing a raft down the Mississippi River. Accompanying him is Jim, a slave running away from being sold. Together the two strike a bond of friendship that takes them through harrowing events and thrilling adventures.