Note: This story was only released separately in the US. In the UK and Australia it was released as part of the Beneath the Surface box set instead.
Arrested after the events at Devil's End, the Master has been incarcerated at a top security prison on a remote island off the south coast of England. When the Doctor and Jo Grant pay a visit to their old enemy, they find him a reformed character. But can the spate of mysterious shipping accidents and garbled reports of sea monsters in the local area really be a coincidence? The Doctor soon finds himself pitted against the Sea Devils, an ancient race of reptile intent on eliminating humankind and reclaiming the Earth for themselves.
DVD EXTRAS INCLUDE:
- Commentary by director Michael Briant, producer Barry Letts, and script editor Terrance Dicks, moderated by Andrew Cartmel
- Hello Sailor! Making Of with cast and crew interviews (36 mins)
- 8mm Film Behind the scenes amateur film with commentary (3 mins)
- Trails and Continuities (6 mins)
- Isolated Music
- Radio Times Listings (DVD-ROM PC/Mac)
- The Making of Doctor Who — Entire text of the 1972 Piccolo book (DVD-ROM PC/Mac)
- Photo Gallery (8 mins)
- Production Note Subtitles
- Digitally remastered picture and sound quality
Originally transmitted February 26 - April 1, 1972