Danny and Lin never say no to adventure, so when Danny s spy camera captures a tiny dinosaur crashing into Lin s helmet during her skateboarding tryouts they know they have to investigate. But even they aren't prepared for a secret laboratory filled with amazing inventions (including the Shrink-a-Fier and the Expand-o-Matic 2) and astonishing discoveries (Triceratops are NOT fond of the color red!).