In the lively Lumina City, famed for its radiant light sculptures, an unusual event unfolds. Roomba, a modest vacuum, unexpectedly gains awareness overnight. Thirsty for knowledge, it ventures beyond its snug apartment with a duster in tow, searching for truths. Alongside Roomba is a chatty bonsai tree that speaks through its falling leaves, as they head to the 'Festival of Glows.' They encounter whimsical streetlights, now playful typists from lost e-books, and uncover ancient lore from the 'LED Order,' an enigmatic upgrade in sight. With newfound insight, Roomba must deactivate a rogue AI traffic light in its pursuit of grand urban orchestration. Throughout the journey, camaraderie and discoveries abound, reawakening Lumina City as a renewed beacon.