'Heavy Rescue: 401' takes a gritty look at one of Canada’s busiest highways

From winter wrecks to roadside rescues, Heavy Rescue: 401 follows the almost half-a-million vehicles travelling Ontario's 400-series highways every day, and how rescue and recovery teams, along with police officers, keep them moving. The gripping reality show works closely with the Ontario Provincial Police to help execute on-the-spot accident reconstructions, manage pileups and oversee toxic spills.In Season 4, well, there's never a dull moment...especially for Sgt. Kerry Schmidt of the OPP. He's often referred to as the eyes and ears of the 401, and in the new season of the show he finds himself in the heart of the chaos with a 70-car pile-up.For more on what viewers can expect from the new season—including some handy winter driving tips, watch our interview with Sgt. Kerry in the video clip above!Heavy Rescue: 401 airs Tuesdays at 10 p.m. ET / 7 p.m. PT on Discovery.[video_embed id= '6133902907001']RELATED: We go behind the scenes of ‘Heavy Rescue: 401’[/video_embed]