Diary of a Wimpy Kid. Roderick Rules

It's a brand-new year and a brand-new journal and Greg is keen to put the humiliating (and secret!) events of last summer firmly behind him. But someone knows everything ? someone whose job it is to most definitely not keep anything embarrassing of Greg's private ? his big brother, Rodrick. How can Greg make it through this new school year with his cool(ish) reputation intact?