As the mysterious spy guys continue their pursuit of Jamie & Sam, Granny McSporran arrives to save our young heroes and speedily gets them to safety. They arrive at Gunnar Swenson’s farm to get some blue space juice from the secretly hidden UFO. Granny McSporran drives the kids back to Sam’s house where Sam’s Dad, Colonel Jones, is in no mood to hear their nonsense about UFO’s and Zombies! Granny decides to take matters into her own hands but get more than she bargains for…