Jack is content to let his robot replacement do all his work until the overly efficient RoboJack shorts out...leaving the duo stranded in the jungle. We learn about earth's magnetic core and how to build a compass.

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. 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.