Discotek Media brought this series out on Crunchyroll back in the summer of 2015 and now they’re continuing to expand their distribution for the series Blue Submarine no. 6. The four episode run is now available on Tubi TV service for streaming. The show was part of Bandai Entertainment’s first wave of DVD releases way back in 1999 and the streaming incarnation brought out all four episodes in its original Japanese version with English subtitles only.
Plot concept: Plot concept: In the future, the rising temperature of the Earth has seen to the melting of the polar ice caps with the planet’s last remaining land masses endanger of sinking into the ocean. As if humanity didn’t have enough problems, an army of ocean-dwelling creatures led by the scientist Zorndyke have seemingly declared war on mankind! Humanity’s last hopes rests with the state of the art vessel, Blue Sub 6 and her crew! Can Tetsu and Mayumi stop Zorndyke’s mutant army and save what remains of humanity?