1. Once Upon a Time (September 24, 2018)

2. Blockzilla (September 25, 2018)

3. The Numberblocks Express (September 26, 2018)

4. Fruit Salad (September 27, 2018)

5. Zero (September 28, 2018)

6. Now We Are Six to Ten (October 1, 2018)

7. Numberblobs (October 2, 2018)

8. Building Blocks (October 3, 2018) 

9. Peekaboo! (October 4, 2018)

10. Hiccups (October 5, 2018)

11. What's the Difference? (October 8, 2018)

12. Numberblock Rally (October 9, 2018)

13. Five and Friends (October 10, 2018)

14. Octoblock to the Rescue! (October 11, 2018)

15. Ten Again (October 12, 2018)

16. Flatland (October 15, 2018)

17. Pattern Palace (October 16, 2018)

18. The Legend of Big Tum (October 17, 2018)

19. Mirror, Mirror (October 18, 2018)

20. The Wrong Number (October 19, 2018)

21. Eleven (January 21, 2019)

22. Twelve (January 22, 2019)

23. The Way of the Rectangle (January 23, 2019)

24. Ride the Rays (January 24, 2019)

25. Block Star (January 25, 2018)

26. Thirteen (January 28, 2019)

27. Fourteen (January 29, 2019)

28. Fifteen (January 30, 2019)

29. Tween Scenes (January 31, 2019)

30. Step Squads (February 1, 2019)

New Characters

• 0

• 11

• 12

• 13

• 14

• 15

Others

• Numberblobs

• Squarey

• Blockzilla

• Aliens

• Kevin, Rainbowlina, Big Bob

• Flatlanders

• Big Tum