Off the coast of British Columbia, Ray Tremblay's team of former combat divers are joined by a couple of archaeologists as they search a sunken WWI shipwreck for bombs. Military protocols soon conflict with scientific methods -‐ leading to a communications break down and a dangerous situation. And in McGivney, New Brunswick, former Navy diver Sean Dockrill is faced with a heart breaking prospect: firing his entire crew of veterans on Remembrance Day.