They have formed a lifelong friendship after meeting the set of BBC children's drama Byker Grove in 1990.
And, Ant McPartlin, 43, and Declan Donnelly, 44, both break out in tears during the emotional trailer for their new two-part special on ITV, and & Dec & # 39; s DNA Journey, as Dec admitted: & # 39; It's not lost to us how happy we are that we met. & # 39;
The promotional video teases the duo on a two-year journey with expert genealogists and historians as they follow their maternal and paternal bloodlines and eventually meet long-lost relatives.
FIRST LOOK: Ant McPartlin, 43, and Declan Donnelly, 44, both break out in tears during the emotional trailer of their new two-part special And & Dec & # 39; s DNA Journey
The friendship of the presenting duo will be explored in the documentary and the trailer gives a glimpse of the extraordinary emotional journey that the couple will make.
Dec opens the trailer by holding back tears while he admits: & We have not lost how lucky we are to meet. We get along so well. I'm getting emotional now. & # 39;
& # 39; I'm more excited about this than he is & # 39 ;, Ant laughs, while the video cuts to Dec, who adds: & # 39; I don't know if I'm ready for this. & # 39;
Ant is later in tears again when he admits: & # 39; I have never cried so much on television & # 39; while wiping his eyes.
Great friendship: the promotional video shows the two-year journey with expert genealogists and historians in search of their ancestral history
Emotional: Dec opens the trailer by admitting: & # 39; We have not lost how lucky we are to meet. & # 39; I now become emotional & # 39 ;, while holding back tears
Excited to get started: & # 39; I'm more ready for this than he is & # 39 ;, Ant laughs, as Dec adds: & # 39; I don't know if I'm ready for this! & # 39;
Tense: the presenting duo looks tense while they are driving in the back of a car
Intense: The teaser shows that both presenters have invested heavily in the search
The following clips show the couple all over the world, on mountain tops, in a helicopter, in a graveyard, and eventually they walk to locations full of people to explain that they share the same DNA.
In the two-part special at ITV, the presenting duo embark on a surprisingly emotional journey of discovery in Ant & Dec & # 39; s DNA Journey.
While their travels bring them to Ireland and the US, including the United Nations headquarters, the duo delve into their past and meet relatives they didn't even know had revealed some truly shocking revelations.
Viewers are treated to a rare and personal glimpse into this truly remarkable friendship with their warmth and infectious humor that has not only conquered the nation over the years.
Time for adventure: the clips that follow show the couple venturing around the world
Revelation: in one scene Ant becomes emotional because he realizes that his great-grandfather – unknown to him – was in fact a war hero
Shock: Dec is shocked when he is standing in front of a grave in Ireland and is told that his DNA is right in the ground on which they walk & # 39;
Abort: Later Ant is in tears again when he admits: & # 39; I have never cried so much on tele in my entire life & # 39;
In 1989, Dec landed a role in BBC children's drama Byker Grove, playing Duncan. A year later Ant was cast as PJ – so PJ and Duncan were born.
Initially they released music under their Byker Grove character names, but the couple continued with a hugely successful career as a television presenter.
The amiable duo played hit shows Ant and Dec's Saturday Night Takeaway, Britain's Got Talent and I & # 39; m A Celebrity … Get me out of here! to name a few.
Ant & Dec & # 39; s DNA Journey is coming to ITV soon.
Conclusion: In the end, the few locations full of people walk in to explain that they share the same DNA
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