Comedy star Russ Abbot joins the cast as Hobbo, while Alvin, Entwistle, Clegg and Truly bring us more attacks on the routine of life in the 31st season of Britain's longest-running comedy. As Hobbo begins to fit in with the rest of the community, in particular with Alvin and Entwistle, he begins to unearth the truth behind his own personal mystery. Adopted at birth, his desire to find his natural mother results in a startling revelation.