 Welcome to the world of the petty Dublin criminal. There s Massive, Mags, the Byrne brothers and then there s Cal, a small-time crook who always has time to help the elderly even when he s robbing the local post office. Cal s number one fan is his young son David, who s following in his father s footsteps, to the great dismay of his mum. The principal of his school is looking for a reason to expel him, the guards are on his trail, and a rival gang want his luminous sneakers. When they all meet up in the principal s office, something has to give.