Ray Tremblay’s MINE EOD team lands a contract to clear bombs from the town of Granby, Quebec – but when they’re swamped by thousands of mortars, they quickly discover that they’re in over the heads. Over in Conception Bay, Newfoundland, GEMTEC searches for bombs inside two shipwrecks sunk by a German U-boat in WWII. It’s a tough job, and Sean Scrivens is forced to fire some of his crew. The real shocker comes when GEMTEC desperately reaches out to last season’s fallen star Bomb Hunter, Sean Dockrill, but he has an agenda of his own.