Write SQL query to solve given problem: What is the title of episode that won the Best International TV Series Award in 2017?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T2.title FROM Award AS T1 INNER JOIN Episode AS T2 ON T1.episode_id = T2.episode_id WHERE SUBSTR(T1.year, 1, 4) = '2017' AND T1.award = 'Best International TV Series' AND T1.result = 'Winner';