When Huck intercepts the real Tom Sawyer on the road and tells him everything, Tom decides to join Huck's scheme, pretending to be his own younger half-brother, Sid, while Huck continues pretending to be Tom. In the meantime, Jim has told the family about the two grifters and the new plan for "The Royal Nonesuch", and so the townspeople capture the duke and king, who are then tarred and feathered and ridden out of town on a rail.