Introduction

Bobs just moved in near his granddad. He finds everything boring until he discovers a time machine in his granddad's attic.

The Mission

Bob and his new friend, Tom, are sent on a mission to stop Bobs evil great-grandfather from destroying earth in Bobs time.

The Challenges

Bob and Tom are forced to face frightening creatures.

The Question

Can Bob finish the mission with the help of Tom? Can Bob save earth?