Three。illegal。drug。dealers。launched。out。on。a。voyage。in。a。homemade。submarine.。The。submarine。worked。well。initially,。but。it。started。to。malfunction.。In。attempting。to。reduce。the。weight。somehow,。they。were。investigating。the。cargo。section。when。they。discovered。a。young。female,。Reina,。hidden。there,。and。she。looked。appalling.。As。the。situation。gets。worse,。the。tensions。among。the。three。men。are。heightened,。and。in。the。midst。of。this,。Reina。attempts。to。escape,。but。she。has。nowhere。to。go。in。the。endless。open。sea. With。an。unusual。setting。of。the。submarine,。where。nothing。can。be。seen。other。than。the。horizon,。Submersible。captures。the。tension。of。the。conflicts。between。the。characters。and。their。struggle。for。survival,。while。the。submarine。environment。itself。arouses。extreme。claustrophobia。and。anxiety.。The。top。star。from。Columbia,。Natalia。Reyes,。who。attracted。the。worldwide。film。industry’s。attention。with。Ciro。Guerra’s。Birds。of。Passage。(2018),。and。made。her。Hollywood。debut。in。Terminator:。Dark。Fate。(2019),。once。again。draws。attention。in。her。role。as。Reina.。(Jin。PARK)