Jack is a small alien who finds everything on Earth fascinating. Spurred on by his insatiable need to learn about creatures and phenomena from Earth and outer space, Jack boldly yet recklessly guides his alien friends through some tricky adventures. While on Earth, he makes some new friends, Niko, Yoki and Sam, who go to great lengths to keep Jack and his various schemes a secret. Along the way, they also begin to realise just how fascinating Earth and outer space can be! Developed for children from six to nine years old, Jack mixes humour, adventure, and science. The series helps children discover amazing new facts about the world and space around them.