Grandma is an inventor, grandpa is a DIY enthusiast, and their dog is a rascal. This summer is going to be fun.

In their first feature-length adventure, Rosa and Dara set off with a group of friends and Grandma for a summer camp. When a piece of comet hits an old castle on an island near the camp, a labyrinth beneath the ruin opens up to reveal a gateway to another dimension, in which Laiko the dog gets lost. The rescue mission is complicated by the camp troublemaker Bert, who plans to change the world with the help of his clones from different dimensions. The comet goes out and the gate soon closes. Will Rosa and Dara be able to find the lost Laiko? And will Bert get the better of his evil self?