ABC has renewed summer Canadian drama Rookie Blue for a fourth season. While not a hit by any stretch — it most recently averaged a 1.3 in the 18-49 demo — the cop drama has done well enough to warrant a renewal at the price point it’s getting the show. ABC points out that Rookie Blue stands as the No. 1 series among Adults 18-49 in the Thursday’s 10 o’clock hour so far this summer. The fourth season of the series, produced by ICF Film and Entertainment One, will go into production in Toronto later this summer. In Canada, it airs on Global.