We follow a group of young Canadian sailors, who are already qualified as ship divers, as they try to pass the physically intense Clearance Diver Prelim course. This preliminary course is meant to weed out the volunteers and determine who is best suited for the challenges and dangers of being one of the Navy’s elite Clearance Divers. The short course is grueling and intense. Watch these young sailors as the all strive to be the best they can be!