A mischievous boy slips away from his teacher during a field trip to a natural history museum and, after the museum closes, sees all of the people he knows transformed into animals.
The children at Napville Elementary School always ignore Officer Buckle's safety tips, until a police dog named Gloria accompanies him when he gives his safety speeches.
In a moment of fright, Sylvester the donkey asks his magic pebble to turn him into a rock but then can not hold the pebble to wish himself back to normal again.