7 ▁is ▁really ▁under ▁Myst er on ▁control . ▁ ▁When ▁the ▁Myst er ons ▁threaten ▁his ▁life , ▁Colonel ▁White ▁( vo iced ▁by ▁Donald ▁Gray ) ▁real ises ▁that ▁TV R - 1 7 ▁was ▁target ing ▁him ▁personally ▁and ▁dec ides ▁to ▁leave ▁Cl ou db ase ▁for ▁the ▁safety ▁of ▁its ▁personnel . ▁He ▁appoint s ▁Captain ▁Blue ▁acting ▁controller ▁of ▁the ▁base ▁after ▁Sc ar let , ▁anger ed ▁by ▁White ' s ▁decision ▁to ▁destroy ▁the ▁satellite , ▁ref uses ▁to ▁step ▁in . ▁However , ▁when ▁the ▁w reck age ▁of ▁the ▁original ▁TV R - 1 7 ▁is ▁discovered , ▁Sc ar let ▁reg rets ▁his ▁actions . ▁He ▁asks ▁Lieutenant ▁Green ▁( vo iced ▁by ▁Cy ▁Grant ) ▁if ▁he ▁knows ▁White ' s ▁destination , ▁but ▁Green ▁has ▁orders ▁to ▁remain ▁silent . ▁ ▁Pos ing ▁as ▁Robert ▁Snow , ▁a ▁deep - se a ▁fish erman , ▁White ▁bo ards ▁the ▁World ▁Navy ▁sub marine ▁USS ▁Pan ther ▁II . ▁As ▁the ▁sub marine ▁prepar es ▁to ▁d ive , ▁En sign ▁So ames ▁gets ▁his ▁foot ▁caught ▁in ▁a ▁chain ▁on ▁the ▁open ▁deck ▁and ▁d row ns ▁as ▁the ▁vessel ▁sub mer ges . ▁Later , ▁the ▁Pan ther ▁II ▁captain ▁appoint s ▁So ames ' ▁Myst er on ▁replacement ▁as ▁White ' s ▁ste ward . ▁ ▁Enter ing ▁White ' s ▁cabin ▁with ▁a ▁gun , ▁So ames ▁sho ots ▁the ▁occup ant , ▁but ▁with ▁a ▁last