Contents: The black depths; Your mission; A midnight visitor; The big squeeze; The big chill; Lights in the dark; Spotlights and lures; Loosejaws and fangtooths; Weird and wonderful;- Mid-ocean drive; Looking for a giant; Fins and tentacles; Doomed liner; Disaster detectives; Rusting ruin; Pacific dive; A near miss; Over the edge; The challenger deep; The deep water challenge; Mission debriefing.