Note: Only released separately in the US. In the UK & Australia, this story was released as part of the Myths and Legends box set instead.
At the very edge of the known universe, the TARDIS materializes on an aging spacecraft, the R1C. On board, the Doctor and Leela meet Jackson and his crew, who are doggedly pursuing their mission to recover the Minyan race banks from a ship that left their home planet centuries earlier.
Closing in at last on the P7E, Jackson risks everything to follow the trail into the heart of a newly formed planet. Can the Doctor face his greatest challenge yet, and secure the future of the Minyans?
DVD EXTRAS INCLUDE:
- Audio Commentary by actors Tom Baker (the Doctor) and Louise Jameson (Leela) and co-writer Bob Baker
- Into the Unknown "Making Of" documentary featuring script editor Anthony Read, actors Jonathan Newth (Orfe) and Norman Tipton (Idas), designer Dick Coles, and video effects designer AJ "Mitch" Mitchell (30 mins)
- Underworld — In Studio Time-coded video clips offer a rare glimpse into the recording of this story (17 mins)
- Photo Gallery (6 mins)
- Production Note Option
- PDF materials (DVD-Rom — PC/Mac): Radio Times Listings
- Digitally remastered picture and sound quality
Originally transmitted January 7 - 28, 1978