Fifteen years after Sonic's mysterious disappearance, he arrives at Tails' doorstep with a family, and no place to go. Sarah, his only daughter, soon finds a new friend in the forest whom no one but an evil scientist knows his origins... 2.5 year work!

Helen started a war in Troy, and that was with just the look of a face. Julie's death caused worse. Brian and Luna may be the main couple, but everyone else, esp. Tails and Cosmo are also focused on. There isn't much more to say.