John Ward heads into a standoff to raise a sunken houseboat near Pensacola. The owner wants it back, but the current tenants don't want John's services. In New Zealand, a crew of divers have one day to salvage a sailboat surrounded by razor-sharp 40-gallon oil drums. In Scotland, salvage divers from Ghost Diving risk their lives in the treacherous North Sea to salvage 700 lobster pots from the sea bed.