In reply to Removed User:
You can follow the narrative, but if you use trainerroad app, they link certain videos with the workout. You then follow the work out along with the video.
Trainerroad is $9.99 US or approx £6.31 I think I'm charged with bank fees for non sterling DD.
Along with this you purchase said videos from sufferfest.
You will also need a ANT+ speed and cadence sensor such as the garmin GSC 10 and an ANT+ receiver and I use the Suunto Movestick as it's smaller and cheaper than the garmin. Once you have these set up your good to go.
In fairness if I had plenty of money I would go for the tacx VR trainer and buy the specific DVDs as well to train to.