Zookeeper Xia Jiang is bitten by a poisonous snake and time-travels, taking over the Cangxi Zoo which is burdened with hundreds of millions in debt and features only simulation mechanical beasts. He starts out relying on system livestock, redeeming various rare animals. Yang Weiren, who covets the zoo's plot, repeatedly makes things difficult, colludes with the foreigner Anna to live-stream and provoke, and even kidnaps Xia Jiang. Xia Jiang rescues experimental cloned animals, exposes their wrongdoing, and has the cloned animals of various countries entrusted to his care, making Xia Jiang a globally renowned animal protector.