When the mystical Little Planet materializes above Never Lake for its annual arrival, Sonic races to its shores only to discover the once-vibrant realm now lies conquered and encased in metal by Dr. Eggman, who seeks the legendary Time Stones buried within its depths. With control over these artifacts, the mad doctor would wield dominion over time itself, enabling him to reshape reality according to his twisted vision. To thwart Eggman's ambitions, Sonic must harness Little Planet's temporal properties to leap between past, present, and future, systematically dismantling the villain's machinery across different eras and reclaiming the scattered Time Stones before the despot's plan reaches its catastrophic culmination.