Recorded between 30 June and 2 July 1995. 20 years ago a teenage boy discovered a 400-year-old bronze cannon in water close to the south Devon coast. Nobody has yet identified the ship it belonged to. Will there be enough left of the wreck to identify it? As usual, Time Team have only three days to find out. Tony is looking forward to getting into his diving suit. But the team cannot dive until the wreck's archaeological supervisor, Chris Preece, arrives. Meanwhile the wreck's finder, Simon Burton, tells his story. Undeterred by disappointing geophysics results, the divers go ahead with their search in murky water. On land, armoury expert Nicholas Hall demonstrates the cannon. Ultimately Robin comes up with a theory about the ship's origin and purpose.