The iguanas are ready to start their Iguana Sing Along – a song they sing before hibernating for the winter. But, uh oh – Iggy the Iguana is missing! Iguanas can't move in the cold, so Diego races against the setting sun to find the lost lizard. Using Click the Camera and a special Glow Stick, he finds Iggy in a cave. Together, they battle slippery rocks, a sandstorm, and coyotes to get back to the iguana bushes, just in time for Iggy to sing his part.