Madeleine McCann mysteriously vanished from her family's holiday apartment in Portugal on May 3, 2007. She remains the world's most famous missing person. Madeleine's parents, Kate and Gerry, said their daughter was abducted. However, lingering questions about what happened have never gone away. Maddie is a multi-episode investigation of the evidence that could make you question everything you thought you knew about the case.

MAP: Locations in profiler's theory | Jez Wilkins and the 'X'

MAP: Ocean Club Resort: who stayed where | Key search zones

DIAGRAM: Where cadaver dogs alerted | Inside apartment 5A

E-FITS: 'The Smith Sighting' e-fits

TIMELINE: May 3 night Madeleine vanished