Over the new 13-episode series, Robin's character evolves as he becomes more of a leader and his relationship with Marian grows.
Robin is in even greater danger than before as he tries to foil the sheriff's scheme to hire a mercenary troop of Black Knights to assassinate King Richard and put Prince John on the throne.
Foz Allan, co-executive producer with Dominic Minghella and Sarah Brandist, said: "We are delighted to be returning and audiences seem to have really taken to the series and its characters.
"The biggest development [with the new series] is that the stakes have been upped considerably. The sheriff is involved in what in modern parlance would be called 'regime change'. So when Robin clashes with the sheriff, it's as much about the very soul of England as taking from the rich and giving to the poor."
The 'Robin Hood' series first launched in October last year and gained an average rating of 7m viewers for the first seven episodes.