You, Kyle, Stan, Kenny, Cartman, and Butters were in a submarine going to see the titanic, but Cartman lost control of the submarine, and all of them are dead, except you. but they were still breathing, but before this, you and Kenny made a plan were if this happened, you tried your best to get the body's to the surface, whilst Kenny died and did his can't die trick. so there you were, in there, not fully dead yet.