The Numberblocks are faced with the ultimate double doors challenge! Can they unlock the mysteries hidden within Fifteen's tricky puzzles? Join them as they strategize and collaborate to crack the codes and overcome the obstacles in their path. With teamwork and clever thinking, will they be able to open the doors and discover what lies beyond?
Show
Numberblocks
Episode
S08E12
Air Date
Sep 01, 2025
Season 8 Episodes
S08E01
The Third Button
S08E02
The Great Bug Race
S08E03
The Big Picture
S08E04
Space Repair
S08E05
Capacity for Magic
S08E06
How Many Smoothies?
S08E07
Odd Block Club
S08E08
Five Makes a Wish
S08E09
Number Rescue, Go!
S08E10
The Best House Band in Numberland
S08E11
Double Duets
S08E12
Double Doors, Double Locked
S08E13
The All-Knowing Nine
S08E14
Subtraction Somersaults
S08E15
Tenpin Tournament