British detectives investigating the 2007 disappearance of Madeleine McCann in Portugal will on Monday publish new e-fits of men they want to contact, in a major public appeal.
The primetime television program will also present a fresh timeline of events surrounding the disappearance of the British girl from her family's holiday apartment, just a few days before her fourth birthday.
It will include a new 25-minute reconstruction as well as live interviews with Gerry and Kate McCann, who launched a global media campaign to find their daughter and still hold out hope she is alive.
Portuguese authorities closed their investigation in 2008, but London's Metropolitan Police spent two years reviewing the evidence and opened their own probe in July this year.
Last week, the British force said analysis of mobile phone data from thousands of people who were in the resort of Praia da Luz when Madeleine disappeared could provide a new lead.