Yvette Fielding, Derek Acorah and the team visit Chatham in Kent to investigate rumours of ghosts roaming buildings in the dockyards. Chatham was one of Britain's most important dockyards for 400 years and Royal Naval ships have been built and repaired here as far back as the reign of Henry VIII. Chatham's naval past is a proud one and it was here that HMS Victory, Nelson's famous flagship at the Battle of Trafalgar, was built. Tragedy struck the dockyard in 1667, when the Dutch fleet attacked the harbour, destroying numerous ships and appropriating the Navy's flagship, the HMS Royal Charles.