Lise Pedersen A hallmark of Germany’s flourishing TV production industry, drama series “Echos” was unveiled at the Berlinale’s newly established Series Market Selects label this week.A coming-of-age show of six one-hour episodes, “Echos” tells the story of Max, Nellie and Janosch, three privileged twenty-somethings from Munich. Always in search of new thrills, they head to an illegal rave party in the Munich catacombs.