Doug and Abi and their three children travel to the Scottish Highlands for Doug's father Gordie's birthday party. It's soon clear that when it comes to keeping a secret under wraps from the rest of the family, their children are … David Tennant, Rosamund Pike, Billy Connolly, Ben Miller, Amelia Bullmore, Emilia Jones, Bobby Smalldridge Added on Amazon Prime 2023-08-04. Youtube Trailer