The Last Space Marine

In 2187, mechanic Noah Warren is abandoned on a battlefield and fuses with an experimental mecha called Cain — an irreversible bond. Hunted by the military as a traitor, he flees into the wasteland with refugees who call him a savior. As Cain's sarcastic AI voice echoes in his skull, Noah must choose: keep running, or stand and fight for those who believe in him.