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 their biggest liability...
David Tennant
as Doug McLeod
Rosamund Pike
as Abi McLeod
Billy Connolly
as Gordie McLeod
Ben Miller
as Gavin McLeod
Amelia Bullmore
as Margaret McLeod
Emilia Jones
as Lottie McLeod
Bobby Smalldridge
as Mickey McLeod
Harriet Turnbull
as Jess McLeod
Celia Imrie
as Agnes Chisolm
Annette Crosbie
as Doreen
Lewis Davie
as Kenneth McLeod
Ralph Riach
as Jimmy Cazzarotto
