Tramp's old life seems like a dream - playing in the garden, running in the park, sleeping in front of the fire. Most of all, being with his beloved master Joe. But Joe doesn't even know that Tramp is still alive. He last saw Tramp being swept away by the black waters of an underground river and thinks that his best friend has gone forever. Now Tramp must make the long journey home. The road ahead of him seems endless, but he knows that every weary step brings him closer to Joe, closer to home.