It's new years eve 1999 and Lord Blackadder confides to his friends that he has built a time machine and, accepting a challenge from those assembled he agrees to go back into the past, collecting famous artifacts from the various periods. A thinly veiled excuse to play with all the eras that the original Blackadder series didn't get a chance to cover, Back and Forth is a one off edition and if your a fan it's got to be worth a gander.