Source: CBBC
Series 3: 15. Digestion
05-04-2018
CBBC
All episodes
Series 2: 3. Boxes
14-03-2018
Series 2: 2. Shooting Star
13-03-2018
Series 2: 1. Jumping
12-03-2018
Series 3: 4. Space Food
10-03-2018
Series 3: 3. Invisible
04-03-2018
Series 3: 2. Plastic
03-03-2018
Series 3: 1. Blood
25-02-2018
Series 2: 16. Space
29-01-2018
Series 2: 15. Largest
26-01-2018
Series 2: 12. Eyesight
08-01-2018
Series 3: 10. Time Zone
06-11-2017
Series 1: Episode 1
29-03-2016
Series 2: 6. Venom
18-01-2018
Series 2: 7. Lightning
11-01-2018
Series 3: 9. Ancestors
03-11-2017
Series 3: 5. Teeth
30-10-2017
