Discovery+ has ordered a true-crime series centered on a documentary filmmaker’s obsessive journey to find the truth behind the disappearance of a missing woman. Relentless will follow Christina ...

Relentless is a six-part series that starts with the 2009 disappearance of Christina Whittaker from Hannibal, Missouri. The show isn’t just about one missing person.

The series follows filmmaker Christina Fontana’s obsessive search for 21-year-old Christina Whittaker, who disappeared in Hannibal, Missouri, in November 2009.

NEW LONDON, Mo. -- Alexandria Johnston, 8, usually plans the anniversary events in memory of her mother, Christina Whittaker. This Sunday was no different. Alexandria picked out a card for her ...

The series follows filmmaker Christina Fontana’s obsessive search for 21-year-old Christina Whittaker, who disappeared in Hannibal, Missouri, in November 2009.

The series follows filmmaker Christina Fontana’s obsessive search for 21-year-old Christina Whittaker, who disappeared in Hannibal, Missouri, in November 2009.