Doctor Who's 19th season came to a close with the four-part adventure "Time-Flight." Finally able to return Tegan (Janet Fielding) to contemporary London, the Doctor (Peter Davison) ends up investigating the disappearance of a Concorde jet. Little does he suspect that he will soon endure another deadly rendezvous with one of his oldest and most formidable enemies. Beginning its run on March 22, 1982, "Time-Flight" was written by Peter Grimwade. ~ Hal Erickson, Rovi