Years ago, the brave opossum warrior Sparkster served the Kingdom of Zephyrus as its legendary Rocket Knight, defending the realm with his trusty sword and jet-powered rocket pack. But once peace returned and a truce was struck with the rival pig empire of Devontidos, the kingdom no longer needed a hero. Set aside and unheeded, Sparkster hung up his gear and retired to a quiet life. Fifteen years later, he lives peacefully on a farm with his wife and son, his days of adventure seemingly behind him. That calm is shattered when he looks up from his fields to see Zephyrus overrun by a savage invading army of mountain wolves. Without hesitation, Sparkster dusts off his Rocket Knight armor and blasts off to defend his homeland once more. Returning to a kingdom that has changed in his absence, he must rocket, slash, and soar through danger to save Zephyrus from ruin.