In a small town, there lived four lifelong friends known as Lily, Alex, Emily, and Max who had a strong passion for music. Lily was an amazing flute player, Alex was a gifted guitarist, Emily was a great singer, and Max was a skilled Pianoist.

One day, while practicing music in their garage, they come across a door leading to a basement with a music studio they never knew about, while looking around in the basement they find an old box of records and decide to play the one known as The Wonder Of Harmony.

While listening to the record, a colorful burst of energy overcomes them with incredible music abilities, showing they are the ones chosen to form a legendary band.

After finding out about their new musical powers, they decide to create a band known as Harmony Unleashed, made from their own unique talents, which helps them become popular all over their town and get invited to special events.