A new ITV series will take celebrities on a life-changing discovery to Norwich as they explore unexpected family ties.

DNA Journey returns for a fifth series on Tuesday, March 7, which follows four celebrity duos as they set off on a quest to discover where they come from.

Downton Abbey star Hugh Bonneville, comedians John Bishop and Johnny Vegas, actor Neil Morrisey, presenter Alex Brooker and dancers Oti and Motsi Mabuse are to feature in the series, which uses cutting-edge DNA technology and genealogy to unearth secrets from their family's pasts.

Eastern Daily Press: John Bishop is among the celebrities to feature in ITV's DNA JourneyJohn Bishop is among the celebrities to feature in ITV's DNA Journey (Image: PA images)

READ MORE: 7 celebrities you didn't know have links to Norwich

For one celebrity, an unexpected link with Norwich will be revealed while others travel to the Merseyside town of St Helens, South Africa and Ireland.

Kathleen Larkin, an executive producer at Voltage TV, which produced the show alongside Mitre Studios, said: “This emotional series has some jaw-dropping revelations showing that some of our celebrity pairings are more connected to each other than they ever dreamed of.”

The show airs on ITV 1 at 9pm and will be available on demand on ITV X.