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.

The story of the forgotten godfather of modern Formula 1—Jack Brabham—and a son's quest to defy the odds in the competitive world of international motor-sport once more.