The Brigadier asks the Doctor to investigate the disappearance of several scientists, only for him to find they have been abducted back in time.
Did You Know?
Fans voted this number 52 in a countdown of the 163 Doctor Who
(1963) stories in Outpost Gallifrey's 40th anniversary poll in 2003, making it the most popular of the four serials to feature the Sontarans. See more
Brigadier; a straight line may be the shortest distance between two points, but it is by no means the most interesting.