Frida is a musical moth who loves to rock out - she puts on her pointy boots and plays her purple guitar really loud! But when the Big Bright Light is switched on, more moths appear, ready to rock together, and Frida starts to feel that everyone is much better than her. Perhaps she isn't so rock-and-roll after all. With the help of her biggest fan, Auntie Edna, Frida learns to reclaim her style, find her confidence and get up and rock on once more.