Things keep vanishing. Numberjacks 3 and 4 discover that 0 has disappeared too and is causing things to vanish. He is evading all attempts to get him back. When 3 helps out on the Brain Gain machine, everything is tripled but order is finally restored.
| Name | Type | Role | |
|---|---|---|---|
| Chris Ellis | Writer | ||
| Helen Sheppard | Director |