Meet the Smiths: two lonely strangers, John and Jane, who have given up their lives and identities to be thrown together as partners – both in espionage and in marriage.

Prince Edmond, to ingratiate himself with his mother, gives him "Mistletoe", which after several disasters turns to Cecily, an expert in dogs. They will discover that love can grow in unexpected places, questioning what they really want.

Since losing her son eight years ago, Jodie has been rebuilding her life but when she catches sight of Daniel, she is convinced she has found her missing son.