Buckstop continues to rage against nature, getting ready to launch his global attack - World War Tree! Will our heroes be able to stop him in time?

Jamie and Sam find themselves facing the Squirrel King and his gang of angry animals. Will they be cracked open like a box of nuts? Or can they persuade them to join forces to beat Buckstop?

With Buckstop having let slip where their parents are, Jamie and Sam make their way into the mine. Where they realise they can use the space ship’s time travelling powers to outwit the guards.

Jamie and Sam return to find the spaceship, only to find they’re surrounded. On the ground, and overhead too. But Granny’s armed and dangerous with her skooshy skoosher zombie soaker…

Our heroes touch down in Scotland and are on their way to Jamie’s uncle and aunt. But Buckstop and Smillie are on to them…

Last time Jamie and Sam went back to school to find that everything was crazy. Mrs Singh chased them and they ended up in the woods with some curious creatures. Surely nothing bad at all will happen to them there?

Mikey Buckstop is Mayor. Voom Buckstop is Ruler of the World! Our heroes, the world’s most wanted criminals, are now hiding among the trash – literally! And what’s happening with the animals? They don’t seem happy…

When Jamie and Sam asked the aliens to help them against big bad Buckstop, they laughed. So now they’re returning to Planet Earth to take him on themselves … but they quickly discover things have changed. A lot!

Our heroes make their escape from those nasty old aliens with their gargling gnomes and go in search of food, only to find themselves on another planet where things are even weirder.

Welcome back to our ordinary everyday story of two kids in a battle to save the world. We join them trapped in an alien spaceship, while down below, their hometown and everyone they know are being turned into zombies by billionaire baddie Voom Buckstop.

Chief Anderson demonstrates the effects of ‘Zombie Juice’ to a room full of government officials, meanwhile Buckstop and Mikey head out into the stormy night armed with water blasters filled with yellow liquid, ready to cause havoc on the town!