Darkness steals into the very heart of Camelot, as Morgana and her puppet Queen hatch a sinister plan to murder the King.

Cast: John Hurt, Bradley James, Angel Coulby, Colin Morgan, Richard Wilson, Rupert Young, John Bradley, Eoin Macken, Veronica Roberts, Tom Hopper, Katie McGrath, Tony Guilfoyle, Zee Asha, Alexander Vlahos, Giles New