Monty Don's French Gardens (2013)

S3E15 The Pen Pal

Vince Lucas, the mobster whom Larry and Balki once testified against, has been released from prison. Balki, having kept in touch with him through letters during his incarceration, decides to invite Vince to their home. While Balki believes in the goodness of his newfound friend, Larry is filled with anxiety and fear due to Vince's past threats against them. Tension arises as the two cousins navigate their contrasting feelings about welcoming a potentially dangerous guest into their lives.