The new series starts properly in this episode as review our first monarch, Kenneth MacAlpin. After the leading Picts were wiped out by the Vikings in 839, Kenneth emerged from the murky past to take the throne of both the Picts and the Scots. But Kenneth is a man of mystery: where did he come from? How did he take the throne? What happened to the Picts? And why does he smell of fish? But most importantly, does he have the Rex Factor?