A BBC Crimewatch reconstruction of Madeleine McCann's disappearance will star a three-year-old actress as Maddie.
A small production team from the programme have spent a week filming abroad for the new appeal, which goes to air on Monday 14th October.
Crimewatch presenter Kirsty Young speaks to the McCanns in the new programme, while presenter Matthew Amroliwala has been to Praia da Luz in Portugal to explore the new focus of the police investigation.
The McCanns and the senior investigating police officer will also be live in the studio.
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Ursula Keogh, 11, went missing on Monday around 3.30pm. She was dressed in her school uniform.
"My sincerest apologies to everyone who purchased tickets and were planning to come to the upcoming shows."
His comments at the Defence and Security Forum on Monday came after a £20 billion black hole in the budget for the next decade emerged.