Complex sentence: Mr. Nezzer understands their reasoning but condemns them as "bad bunnies" and sends them down a chute into the furnace, but Laura Carrot rescues them just in time with her delivery truck.
Split into simpler sentences: Mr. Nezzer understands their reasoning but condemns them as "bad bunnies". Then he sends them down a chute into the furnace, but Laura Carrot rescues them with a delivery truck.