It's time for Jamie, Tom and Wanna to journey right back in time to the Permian era. A time of weird and wonderful creatures and lots of danger and adventure! The friends are on the hunt for a dimetrodon to find out what it used the huge sail on its back for. They discover lots of amazing things about this Permian carnivore, but as they creep around trying to get a closer look they don't realize that they're the ones being stalked . . .