Season 1, Episode 20

Showdown in the Abyss

Air Date: 1980-02-09

Overview: The Thundersub gets entangled in an anti submarine Net set up by the death force but Anna comes up with an escape plan to get the Thundersub out.

Runtime: 25 minutes

Cast

Makio Inoue

Toru Furuya

Chiyoko Kawashima

Ichiro Mizuki

Toshio Furukawa

Hidekatsu Shibata

Masatô Ibu