At sixteen years old Mark just wants to get away from home, so he joins the RAF as a boy entrant at RAF St Athan. He discovers that the RAF is full of boys like him; seventeen year olds trying to find their place in the world. He learns the joy of sex, in sometimes ludicrous situations, and the pain of first love. His friendship with Chas has him changing from guitarist to drummer, but it is his friendship with Ollie that will dominate his life at St Athan and beyond.