After hiding his loot and getting thrown in jail, brooding outlaw Ruby befriends Quentin, a dim-witted and garrulous giant. After Quentin botches a solo escape attempt, they make a break together. Unable to shake the clumsy Quentin, Ruby is forced to take him along as he pursues his former partners in crime to avenge the death of the woman he loved and get to the money.

The illustrator and author paints scenes from a 70-year-long career, including his work with Roald Dahl. With David Walliams, Joanna Lumley, Peter Capaldi, Ore Oduba and Michael Rosen.