Wagon Ho!

The Once-Lers are told by the owner that they can sit on the wagon and that it had better not move. They and the donkey nod in agreement. The Once-Lers try to get the donkey to move. He won't move. The small Once-Ler taunts the donkey with what looks like an apple in front of him on a long pole the he's off. Did they get the wagon back in time? Yes, but what transpired from start to finish?