Mia and Me (2012)

S1E5 The Golden Son

Vincent's sharp instincts come into play as he aids Mia in escaping from Violetta and her gang, who are intent on claiming Mia's enigmatic book. Unsure about revealing her secrets to Vincent, Mia slips away to Centopia, where she discovers Lyria in desperate need of assistance. While there, she witnesses a breathtaking moment—the arrival of a golden-horned unicorn, a creature that could hold the power to revive hope in Centopia.