The barbaloots are told by the Once-Ler that they can sit on the wagon and that it had better not move. They and the donkey nod in agreement. The barbaloots try to get the donkey to move. He won't move. The small barbaloot 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?
