Complex sentence: Upon arriving in Portwenn--where, to his frustration, the locals address him as "Doc Martin"--he finds the surgery (medical clinic) in disarray and inherits an incompetent receptionist, Elaine Denham (Lucy Punch).
Split into simpler sentences: Upon arriving in Portwenn--where, to his frustration, the locals address him as "Doc Martin"--he finds the surgery (medical clinic) in disarray. He inherits an incompetent receptionist, Elaine Denham (Lucy Punch).