Everything went exactly as it was supposed to until halfway through Harry Potter's second year of Hogwarts. Slytherin's monster, the Basilisk which can only be controlled by the Heir of Slytherin, is found dead on the second floor with a hole bursting from its throat a few days before Christmas holidays. The nighmare appears to be over, but what actually killed it remains a mystery

A young John Connor waits out Judgement Day in an underground bunker in Mexico. Years pass waiting to hear from the Resistance until eventually, John goes out into the ruins of the dead world. Skynet is expanding its reach across the landscape and as John seeks out survivors, he becomes aware of something else amongst the ruins. Something unseen, watching him closely.