The closest he's ever come to super-stardom is playing the back end of a donkey in the school Nativity play. Then his sister drags him along to an Apocalips concert and he overhears members of the band plotting to destroy all humanity. Starting with their own lead singer.
Can Sam discover his hidden talents, infiltrate the World's Most Evil Boyband and foil their fiendish plan? One thing's for sure - if he's going to save the universe, he'll need a bit of help.