少年汤米是一个很有天赋的作曲家,他一直希望能进入著名的悉尼音乐学院进修。但在澳大利亚内地,汤米很难找一支像样的乐队来演奏自己的作品,以证明自己的实力。一次机缘巧合,汤米遇到了一群监狱犯人,没想到后者的演奏水平,正符合他的要求……Tommy, a gifted teenage composer, dreams of being accepted into the famous Sydney Conservatorium of Music. Unfortunately, a good band is hard to find in the middle of Outback Australia - until a strange incident involving flying watermelons leads him to a group of talented prison inmates.