Wick descends into the cave and harnesses Annie, and although a weakened Vaughn thinks he is about to attack him, Wick attaches a harness to him as well.
Along with Peter, he attempts to pull Annie out of the crevasse, but an ice boulder falls, knocking Wick and Vaughn from the ledge in the crevice and pulling Annie and Peter down.
Vaughn’s story from his first disastrous climb on K2 detailed that the dexamethasone was swept away, but Wick later discovers an empty box of dex, proving his assertions that Vaughn used it for himself and ultimately let Wick’s wife die from pulmonary edema to which Wick swears revenge on Vaughn.
Meanwhile, in the crevasse, Vaughn administers dex to himself and kills Tom with the syringe full of air to save the remaining dex for himself.
Peter, who initially radioed Tom to turn around, stands by the radio and begins to hear Annie using Morse code to inform base camp that they are alive.
Peter manages to assemble a rescue mission with some of the climbers at base camp, including brothers, Cyril and Malcolm (Le Marquand and Mendelsohn), Monique Aubertine (Izabella Scorupco), Kareem Nazir (Alexander Siddig), and Skip Taylor (Robert Taylor).
To save Annie and Peter, and to fulfill his revenge on Vaughn, Wick pulls a knife from his pocket, says a Buddhist prayer and cuts the rope holding himself and Vaughn (similar to Royce Garrett’s death) dropping the two to their deaths. After two falling amateurs leave the family dangling, Royce forces Peter to cut him loose to save Peter and his sister.