The Cuck-Cuck-Cuck-Oo-Oo-Oo Bird is the 15th episode of Season 1. It originally aired on 3 November 2006 and was released on DVD volume 4.

Synopsis Edit

There's a pattern to the problems the Puzzler causes - and 5 has to break that pattern.

Numberjacks: 3, 4, 5, 6

Agents: 14, 47, 73, 96

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