Less of a fully blown plot more of a plot outline suitable for a one or two session Steampunk or Alternate History game.
The PCs are a mix of passengers and crew aboard the RMS Titanic on it's maiden journey from Southampton to NewYork when it finds itself on a collision course with an iceberg. The captain and crew give the iceberg a wide berth only to find some hours later that the iceberg is following them.
The iceberg is infact the cleverly disguised ocean going mothership of the twisted genius Fu Manchu who launches his attack on the Titanic in the guise of manned mini submarines. These small submersibles are designed to punch a neat hole in the side of the ship and disgorge their contents, blood thirsty Malay pirates, into the bowels of the ship and take it over from the inside out.
The PCs must:
- overcome the pirates
- discover what Fu Manchu wants with the ship
- ensure that it completes its journey.