It’s time for the trip of a lifetime! Come along on one of Thadeus Nook’s Time Tours. See history as it really was. Get to witness wars and assassinations! See barbarian warlords right up close!
The Doctor and Leela encounter a most enterprising young gentleman - using time travel for his own financial gain. The Doctor is horrified at the irresponsibility - but it’s just the tip of the iceberg.
Because Thadeus Nook is about to learn that history is often best left in the past.
Note: This title is also available on CD as part of Doctor Who: The Fourth Doctor Adventures Series 10 Volume 02