Plot: It was Valentine's Day, and today it's Thumper's Birthday! Knuckles, Amy, Tails, Charmy, Angel, and the Lost Boys are preparing for Thumper's birthday, Thumper falls in love with a beautiful female toddler bunny, Tagalong Rabbit, that she wants to be his valentine. So he went to see the evil commander of the Dark Kingdom, Queen Beryl when Dr. Eggman is on a holiday, as Thumper really wants to see Tagalong, Beryl has a plan to seek revenge on Knuckles and his friends! Can Thumper save his friends?