The Hobbit Trilogy is a series of fantasy adventure films based on J.R.R. Tolkien's novel, The Hobbit. Benedict Cumberbatch lends his voice to the character of Smaug, a fearsome dragon who guards a vast treasure hoard. The films follow the journey of Bilbo Baggins, played by Martin Freeman, as he joins a group of dwarves on a quest to reclaim their homeland from the dragon. Cumberbatch's deep and menacing voice brings Smaug to life, adding an extra layer of excitement and intensity to the epic adventure.