Another time traveller appears on Seaview but this guy is totally lacking the appeal of past time traveller: Mr Pem (Henry Jones). Crane is placed in a nightmare-type world on Seaview.
If this episode seems unlike other Voyage/Sea episodes there is a very good reason for it: Other people were running the show in this hour. This one had a very different director and a very different writer. Adding to the situation, Irwin Allen was probably busy putting together his massive budget Land Of The Giants series at this time. In a nutshell: This is Voyage/Sea but it is not Voyage/Sea.
Crane being blocked from leaving the control room by the image of a tidal wave, the Bewitched/I Dream Of Jeannie-type footage of Crane being invisible to other crew members, none of this stuff got the intended reaction from me. It just looked dumb. However, many fans love this hour, I wish I could love it, I love Voyage/Sea, but The Death Clock does not do it for me. Next week the other time traveller - Mr Pem - returns in a knockout hour called: No Way Back (the final episode of Voyage/Sea ever!).