Sunday Night reporter Rahni Sadler is given unprecedented access to the parents of missing British toddler Madeleine McCann. Four years after Madeleine disappeared during a family holiday in Portugal, the McCanns disclose startling new clues driving the on-going worldwide search for their daughter.

The couple, who have raised millions of dollars in the past three years to fund their own private manhunt, now believe Madeleine’s abductor stalked the family.

Also, exclusive never-before seen home video reveals a side to the McCann family that will surprise many.

We join Kate and Gerry McCann as they travel across Europe on a mission to keep Madeleine in the minds of the public.