As Merlin returns to our screens, Secrets and Magic celebrates the young wizard and looks at Merlin's most memorable adventures. Speaking to the cast and crew, we celebrate that Merlin is back ... and bigger than ever! Talking to the cast and crew, we look back to series one and Merlin's first adventures at Camelot, and talk in depth to Merlin actor Colin Morgan about how Merlin's character has developed through series one and hints to adventures still to come for our young wizard. All this, plus Secrets and Magic follows the cast and crew to France where we join guest actor Mackenzie Crook on set for the filming of a complicated CGI sequence.