Based on a true story, Benjamin Mee is a recently-widowed father who moves his family to a beautiful estate miles outside the city. The only catch is that the estate is also a dilapidated zoo replete with 200 animals, and the purchase of the home is conditional on the new owner keeping the zoo and its entire staff. The Mee family subsequently sets out to rebuild and refurbish the zoo to its former glory, making new friends along the way.