Production has begun in Halifax, Nova Scotia, on Season 4 of the television series, \"Haven,\" Syfy announced. The 13-episode season went into production Wednesday. Fresh installments are expected to start airing in October, the cable network said. Starring Emily Rose, Colin Ferguson, Eric Balfour and Lucas Bryant, the show is based on \"The Colorado Kid,\" a novella by Stephen King. It follows former FBI agent Audrey Parker, who becomes a police officer in Haven, Maine, and soon discovers the small town\'s many secrets.