Escaping from the Pirate Lizardmen on the Windshearer, Jack and David continue to follow the signal of David's sonic screwdriver to get back to the central control room of the TORTIS (Now don't you wish you kept up with the show more often?) This time with the aid of A Beginner's Guide to Interplantetary Destruction's Harbinger's of Calamity Parts 1 and 2 and Great Northern Audio's The Last Shuttle!