An evil spacebunny from Jupiter has used dino DNA to create Jurassic Jack Rabbits, and it''s up to the Ricotta family to stop them from taking over the whole planet.
^Pilkey, Dav; Ontiveros, Martin (2015). Ricky Ricotta's Mighty Robot vs. the Uranium Unicorns from Uranus, HARPERCOLLINS PUBLISHERS. BiggerBooks. ISBN 9780439376471 (revised Oct 2023)
^Dav Pilkey, Martin Ontiveros (2011). Ricky Ricotta''s Mighty Robot vs. The Uranium Unicorns From Uranus, Scholastic Canada, Ltd. Indigo. ISBN 9780439376471 (revised Mar 2017)