Having joined forces with Skye and Jack Savage to find the mysterious lynx who shot Nick, the WildeHopps now find themselves tied to the ancient Kataiahs Lysander, the founder of Zootopia, as he strives to prevent disaster when both nature and Mammaldom itself seem bent on driving intelligent mammals to extinction. This is the continuation of Back From Where We Came.

During a routine breaking-and-entering call, mates Judy and Nick WildeHopps stumble upon a mysterious lynx who knows much more about them than anyone should. The path his elusive trail leads them on reveals how Zootopia came to be. And how it might also end as the past catches up to the future. This is Part One, now finished. Part Two, Rise of the Northern Lights has begun.