Leo Vance, a bankrupt zoo director saddled with ten million dollars in debt, accidentally tumbles into a bear pit and awakens the extraordinary ability to understand animal speech. He quickly learns that every fierce beast in the zoo speaks with a distinct human accent and boasts a vibrant, one-of-a-kind personality.
By resolving the animals' "personal woes" — from a grizzly bear's crippling depression and a Bengal tiger's wisdom tooth agony, to a cheetah's severe cage trauma and a great white shark with a rusty fishhook lodged in its throat — he transforms these formidable predators into star "employees". He builds a cage-free interactive wildlife zone, turning the failing zoo into an overnight sensation against all odds.
Real estate tycoon Richard Sterling repeatedly hatches plots to sabotage the zoo, but Leo outwits him at every turn. In the end, Leo tames a rampaging wild elephant herd, exposes the villain's conspiracy, secures the development rights to Hot Spring Mountain, builds the world's largest cage-free animal utopia, and pulls off a remarkable life turnaround.
