"Do or Die, Baby!"
Scott, Jean and Hank arrive at Trask's hideout, ready to do battle against the Sentinels. Meanwhile, Judge Chamlers reveals the truth about young Larry and that he is a mutant and that is why the sentinels turned on him. All mutants are rounded up and placed in the holding tubes but Judge Chalmers sacrifices his life to free Alex from his cell. But the Sentinels are defeated by the very logic that runs them as they seek out the source of all mutations, within the Sun. Meanwhile, Alex explodes and nearly kills himself as the X-Men seek help for Alex in a colleague of Professor X's named Dr. Lykos.
The X-Men make their last stand against the Sentinels.