Bea, Thomas, and the rabbits have created a makeshift family, but despite his best efforts, Peter can’t seem to shake his mischievous reputation. Adventuring out of the garden, Peter finds himself in a world where his mischief is appreciated, but when his family risks everything to come looking for him, Peter must figure out what kind of bunny he wants to be.
Thomas and Bea are now married and living with Peter and his rabbit family. Bored of life in the garden, Peter goes to the big city, where he meets shady characters and ends up creating chaos for the whole family.