Zac, Clare and Luke find themselves in the drought-stricken present of outback Queensland where the only hope to save their Uncle's farm is buried in the past. Devastated by the effects of drought on the family farm, rock collector and all-round science buff, Zac has a plan.
Along with his squabbling siblings, animal loving, Clare and trouble-making, Luke, the trio set off in search of dinosaur fossils. Not heeding weather warnings, they must seek shelter fast when two cyclones merge to descend upon the landscape. After the storm, the environment is strangely different. A lush rainforest canopy now shelters them. A massive lake now fills the open plains. The homestead is nowhere in sight. Zac can't reach Uncle Tom on his walkie-talkie and what's worse, there's a pile of ginormous poo that no cow could possibly have left behind. Will they find the proof they need to save the family farm, or have they discovered much more than they ever thought possible?
