Back to the 90s.

Since childhood, five best friends have dreamed of making it big as a boy band. When a once-in-a-lifetime opportunity arises to take a step closer to realizing their musical dream, one band member suddenly wants to give it all up, putting the future of the entire group in jeopardy. The five guys have to rise to the occasion - and in doing so, they suddenly find themselves in a completely different decade.