Story of anxious Peter (12) and his sister Verity (9), taken underground by a garrison of armoured pangolin.

When a young boy named Jake accidentally makes a new friend in an experiment gone wrong a troubled town is plunged into chaos. But with the creature rapidly evolving every day, Jake finds it increasingly difficult to keep his new pet secret. Jake's friends and new girl Abbie realize they are not the only ones interested in this strange, mischievous little dinosaur and soon discover that the only thing more mysterious than what it is, is who is looking for it.