Flo Gardner isn't exactly thrilled when she and her mom move into Corman Towers, a giant apartment building in the middle of the city. To call their new home strange is an understatement. And things only get weirder when she meets Ferdinand, better known as Furry. It doesn't take Flo long to realize that there's more than one secret lurking in her new home.

When piles of sand start showing up all over Corman Towers, it can only mean one thing - trouble. Sure enough, a mummy has escaped from the mysterious crack in the basement. It's up to Furry and Flo to guide the mummy back to his own world. But when they fall through the crack too, Furry and Flo find themselves in a whole new world of trouble. As the portal home grows smaller and smaller, the two friends must work together to solve an ancient riddle...

The floors are shaking, and the windows are cracking ... something big and heavy is stomping around Corman Towers. Furry and Flo are awoken by the ruckus and discover an enormous stone golem wreaking havoc in the alley behind their building. It's up to them to get the gravel goliath back to Furry's world where he belongs ... but making it back to their own world in time is easier said than done.