Following a record-breaking debut, in which it became the most-watched premiere in Discovery’s 22-year history, Bell Media has greenlit and set cameras rolling on a second season of Heavy Rescue: 401.

Ten episodes of the Highway Thru Hell spinoff, produced by Great Pacific Media, are currently filming in Ontario. Season two of the hour-long docuseries will air on Discovery in the early part of 2018.

The series, which bowed on Jan. 3, follows rescue, maintenance and tow crews operating along Ontario’s Highway 401. The debut episode attracted an average of nearly 504,000 overnight viewers (2+) and a total overnight reach of nearly 720,000, according to Bell Media. Nearly 3.5 million unique viewers have watched some part of the debut episode, said Bell Media in a press release.

Season one aired at 10 p.m. on Tuesday and the finale episode aired on Feb. 28.

Executive producers on the series are Mark Miller and Blair Reekie, while Todd Serotiuk serves as series producer. Heavy Rescue: 401 is produced with the financial support of the CMF and the Ontario government’s film tax credit program.